3  *  linux/drivers/mmc/host/sdhci.c - Secure Digital Host Controller Interface driver
31 #include <linux/mmc/host.h>
41 	pr_debug("%s: " DRIVER_NAME ": " f, mmc_hostname(host->mmc), ## x)
44 	pr_err("%s: " DRIVER_NAME ": " f, mmc_hostname(host->mmc), ## x)
51 static void sdhci_enable_preset_value(struct sdhci_host *host, bool enable);
53 static bool sdhci_send_command(struct sdhci_host *host, struct mmc_command *cmd);
55 void sdhci_dumpregs(struct sdhci_host *host)  in sdhci_dumpregs()  argument
60 		   sdhci_readl(host, SDHCI_DMA_ADDRESS),  in sdhci_dumpregs()
61 		   sdhci_readw(host, SDHCI_HOST_VERSION));  in sdhci_dumpregs()
63 		   sdhci_readw(host, SDHCI_BLOCK_SIZE),  in sdhci_dumpregs()
64 		   sdhci_readw(host, SDHCI_BLOCK_COUNT));  in sdhci_dumpregs()
66 		   sdhci_readl(host, SDHCI_ARGUMENT),  in sdhci_dumpregs()
67 		   sdhci_readw(host, SDHCI_TRANSFER_MODE));  in sdhci_dumpregs()
68 	SDHCI_DUMP("Present:   0x%08x | Host ctl: 0x%08x\n",  in sdhci_dumpregs()
69 		   sdhci_readl(host, SDHCI_PRESENT_STATE),  in sdhci_dumpregs()
70 		   sdhci_readb(host, SDHCI_HOST_CONTROL));  in sdhci_dumpregs()
72 		   sdhci_readb(host, SDHCI_POWER_CONTROL),  in sdhci_dumpregs()
73 		   sdhci_readb(host, SDHCI_BLOCK_GAP_CONTROL));  in sdhci_dumpregs()
75 		   sdhci_readb(host, SDHCI_WAKE_UP_CONTROL),  in sdhci_dumpregs()
76 		   sdhci_readw(host, SDHCI_CLOCK_CONTROL));  in sdhci_dumpregs()
78 		   sdhci_readb(host, SDHCI_TIMEOUT_CONTROL),  in sdhci_dumpregs()
79 		   sdhci_readl(host, SDHCI_INT_STATUS));  in sdhci_dumpregs()
81 		   sdhci_readl(host, SDHCI_INT_ENABLE),  in sdhci_dumpregs()
82 		   sdhci_readl(host, SDHCI_SIGNAL_ENABLE));  in sdhci_dumpregs()
84 		   sdhci_readw(host, SDHCI_AUTO_CMD_STATUS),  in sdhci_dumpregs()
85 		   sdhci_readw(host, SDHCI_SLOT_INT_STATUS));  in sdhci_dumpregs()
87 		   sdhci_readl(host, SDHCI_CAPABILITIES),  in sdhci_dumpregs()
88 		   sdhci_readl(host, SDHCI_CAPABILITIES_1));  in sdhci_dumpregs()
90 		   sdhci_readw(host, SDHCI_COMMAND),  in sdhci_dumpregs()
91 		   sdhci_readl(host, SDHCI_MAX_CURRENT));  in sdhci_dumpregs()
93 		   sdhci_readl(host, SDHCI_RESPONSE),  in sdhci_dumpregs()
94 		   sdhci_readl(host, SDHCI_RESPONSE + 4));  in sdhci_dumpregs()
96 		   sdhci_readl(host, SDHCI_RESPONSE + 8),  in sdhci_dumpregs()
97 		   sdhci_readl(host, SDHCI_RESPONSE + 12));  in sdhci_dumpregs()
98 	SDHCI_DUMP("Host ctl2: 0x%08x\n",  in sdhci_dumpregs()
99 		   sdhci_readw(host, SDHCI_HOST_CONTROL2));  in sdhci_dumpregs()
101 	if (host->flags & SDHCI_USE_ADMA) {  in sdhci_dumpregs()
102 		if (host->flags & SDHCI_USE_64_BIT_DMA) {  in sdhci_dumpregs()
104 				   sdhci_readl(host, SDHCI_ADMA_ERROR),  in sdhci_dumpregs()
105 				   sdhci_readl(host, SDHCI_ADMA_ADDRESS_HI),  in sdhci_dumpregs()
106 				   sdhci_readl(host, SDHCI_ADMA_ADDRESS));  in sdhci_dumpregs()
109 				   sdhci_readl(host, SDHCI_ADMA_ERROR),  in sdhci_dumpregs()
110 				   sdhci_readl(host, SDHCI_ADMA_ADDRESS));  in sdhci_dumpregs()
114 	if (host->ops->dump_vendor_regs)  in sdhci_dumpregs()
115 		host->ops->dump_vendor_regs(host);  in sdhci_dumpregs()
127 static void sdhci_do_enable_v4_mode(struct sdhci_host *host)  in sdhci_do_enable_v4_mode()  argument
131 	ctrl2 = sdhci_readw(host, SDHCI_HOST_CONTROL2);  in sdhci_do_enable_v4_mode()
136 	sdhci_writew(host, ctrl2, SDHCI_HOST_CONTROL2);  in sdhci_do_enable_v4_mode()
140  * This can be called before sdhci_add_host() by Vendor's host controller
143 void sdhci_enable_v4_mode(struct sdhci_host *host)  in sdhci_enable_v4_mode()  argument
145 	host->v4_mode = true;  in sdhci_enable_v4_mode()
146 	sdhci_do_enable_v4_mode(host);  in sdhci_enable_v4_mode()
155 static void sdhci_set_card_detection(struct sdhci_host *host, bool enable)  in sdhci_set_card_detection()  argument
159 	if ((host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION) ||  in sdhci_set_card_detection()
160 	    !mmc_card_is_removable(host->mmc) || mmc_can_gpio_cd(host->mmc))  in sdhci_set_card_detection()
164 		present = sdhci_readl(host, SDHCI_PRESENT_STATE) &  in sdhci_set_card_detection()
167 		host->ier |= present ? SDHCI_INT_CARD_REMOVE :  in sdhci_set_card_detection()
170 		host->ier &= ~(SDHCI_INT_CARD_REMOVE | SDHCI_INT_CARD_INSERT);  in sdhci_set_card_detection()
173 	sdhci_writel(host, host->ier, SDHCI_INT_ENABLE);  in sdhci_set_card_detection()
174 	sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE);  in sdhci_set_card_detection()
177 static void sdhci_enable_card_detection(struct sdhci_host *host)  in sdhci_enable_card_detection()  argument
179 	sdhci_set_card_detection(host, true);  in sdhci_enable_card_detection()
182 static void sdhci_disable_card_detection(struct sdhci_host *host)  in sdhci_disable_card_detection()  argument
184 	sdhci_set_card_detection(host, false);  in sdhci_disable_card_detection()
187 static void sdhci_runtime_pm_bus_on(struct sdhci_host *host)  in sdhci_runtime_pm_bus_on()  argument
189 	if (host->bus_on)  in sdhci_runtime_pm_bus_on()
191 	host->bus_on = true;  in sdhci_runtime_pm_bus_on()
192 	pm_runtime_get_noresume(host->mmc->parent);  in sdhci_runtime_pm_bus_on()
195 static void sdhci_runtime_pm_bus_off(struct sdhci_host *host)  in sdhci_runtime_pm_bus_off()  argument
197 	if (!host->bus_on)  in sdhci_runtime_pm_bus_off()
199 	host->bus_on = false;  in sdhci_runtime_pm_bus_off()
200 	pm_runtime_put_noidle(host->mmc->parent);  in sdhci_runtime_pm_bus_off()
203 void sdhci_reset(struct sdhci_host *host, u8 mask)  in sdhci_reset()  argument
207 	sdhci_writeb(host, mask, SDHCI_SOFTWARE_RESET);  in sdhci_reset()
210 		host->clock = 0;  in sdhci_reset()
212 		if (host->quirks2 & SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON)  in sdhci_reset()
213 			sdhci_runtime_pm_bus_off(host);  in sdhci_reset()
223 		if (!(sdhci_readb(host, SDHCI_SOFTWARE_RESET) & mask))  in sdhci_reset()
227 				mmc_hostname(host->mmc), (int)mask);  in sdhci_reset()
228 			sdhci_dumpregs(host);  in sdhci_reset()
236 static void sdhci_do_reset(struct sdhci_host *host, u8 mask)  in sdhci_do_reset()  argument
238 	if (host->quirks & SDHCI_QUIRK_NO_CARD_NO_RESET) {  in sdhci_do_reset()
239 		struct mmc_host *mmc = host->mmc;  in sdhci_do_reset()
245 	host->ops->reset(host, mask);  in sdhci_do_reset()
248 		if (host->flags & (SDHCI_USE_SDMA | SDHCI_USE_ADMA)) {  in sdhci_do_reset()
249 			if (host->ops->enable_dma)  in sdhci_do_reset()
250 				host->ops->enable_dma(host);  in sdhci_do_reset()
254 		host->preset_enabled = false;  in sdhci_do_reset()
258 static void sdhci_set_default_irqs(struct sdhci_host *host)  in sdhci_set_default_irqs()  argument
260 	host->ier = SDHCI_INT_BUS_POWER | SDHCI_INT_DATA_END_BIT |  in sdhci_set_default_irqs()
266 	if (host->tuning_mode == SDHCI_TUNING_MODE_2 ||  in sdhci_set_default_irqs()
267 	    host->tuning_mode == SDHCI_TUNING_MODE_3)  in sdhci_set_default_irqs()
268 		host->ier |= SDHCI_INT_RETUNE;  in sdhci_set_default_irqs()
270 	sdhci_writel(host, host->ier, SDHCI_INT_ENABLE);  in sdhci_set_default_irqs()
271 	sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE);  in sdhci_set_default_irqs()
274 static void sdhci_config_dma(struct sdhci_host *host)  in sdhci_config_dma()  argument
279 	if (host->version < SDHCI_SPEC_200)  in sdhci_config_dma()
282 	ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL);  in sdhci_config_dma()
290 	if (!(host->flags & SDHCI_REQ_USE_DMA))  in sdhci_config_dma()
294 	if (host->flags & SDHCI_USE_ADMA)  in sdhci_config_dma()
297 	if (host->flags & SDHCI_USE_64_BIT_DMA) {  in sdhci_config_dma()
303 		if (host->v4_mode) {  in sdhci_config_dma()
304 			ctrl2 = sdhci_readw(host, SDHCI_HOST_CONTROL2);  in sdhci_config_dma()
306 			sdhci_writew(host, ctrl2, SDHCI_HOST_CONTROL2);  in sdhci_config_dma()
307 		} else if (host->flags & SDHCI_USE_ADMA) {  in sdhci_config_dma()
317 	sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL);  in sdhci_config_dma()
320 static void sdhci_init(struct sdhci_host *host, int soft)  in sdhci_init()  argument
322 	struct mmc_host *mmc = host->mmc;  in sdhci_init()
326 		sdhci_do_reset(host, SDHCI_RESET_CMD | SDHCI_RESET_DATA);  in sdhci_init()
328 		sdhci_do_reset(host, SDHCI_RESET_ALL);  in sdhci_init()
330 	if (host->v4_mode)  in sdhci_init()
331 		sdhci_do_enable_v4_mode(host);  in sdhci_init()
333 	spin_lock_irqsave(&host->lock, flags);  in sdhci_init()
334 	sdhci_set_default_irqs(host);  in sdhci_init()
335 	spin_unlock_irqrestore(&host->lock, flags);  in sdhci_init()
337 	host->cqe_on = false;  in sdhci_init()
341 		host->clock = 0;  in sdhci_init()
346 static void sdhci_reinit(struct sdhci_host *host)  in sdhci_reinit()  argument
348 	u32 cd = host->ier & (SDHCI_INT_CARD_REMOVE | SDHCI_INT_CARD_INSERT);  in sdhci_reinit()
350 	sdhci_init(host, 0);  in sdhci_reinit()
351 	sdhci_enable_card_detection(host);  in sdhci_reinit()
356 	 * been missed while the host controller was being reset, so trigger a  in sdhci_reinit()
359 	if (cd != (host->ier & (SDHCI_INT_CARD_REMOVE | SDHCI_INT_CARD_INSERT)))  in sdhci_reinit()
360 		mmc_detect_change(host->mmc, msecs_to_jiffies(200));  in sdhci_reinit()
363 static void __sdhci_led_activate(struct sdhci_host *host)  in __sdhci_led_activate()  argument
367 	if (host->quirks & SDHCI_QUIRK_NO_LED)  in __sdhci_led_activate()
370 	ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL);  in __sdhci_led_activate()
372 	sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL);  in __sdhci_led_activate()
375 static void __sdhci_led_deactivate(struct sdhci_host *host)  in __sdhci_led_deactivate()  argument
379 	if (host->quirks & SDHCI_QUIRK_NO_LED)  in __sdhci_led_deactivate()
382 	ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL);  in __sdhci_led_deactivate()
384 	sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL);  in __sdhci_led_deactivate()
391 	struct sdhci_host *host = container_of(led, struct sdhci_host, led);  in sdhci_led_control()  local
394 	spin_lock_irqsave(&host->lock, flags);  in sdhci_led_control()
396 	if (host->runtime_suspended)  in sdhci_led_control()
400 		__sdhci_led_deactivate(host);  in sdhci_led_control()
402 		__sdhci_led_activate(host);  in sdhci_led_control()
404 	spin_unlock_irqrestore(&host->lock, flags);  in sdhci_led_control()
407 static int sdhci_led_register(struct sdhci_host *host)  in sdhci_led_register()  argument
409 	struct mmc_host *mmc = host->mmc;  in sdhci_led_register()
411 	if (host->quirks & SDHCI_QUIRK_NO_LED)  in sdhci_led_register()
414 	snprintf(host->led_name, sizeof(host->led_name),  in sdhci_led_register()
417 	host->led.name = host->led_name;  in sdhci_led_register()
418 	host->led.brightness = LED_OFF;  in sdhci_led_register()
419 	host->led.default_trigger = mmc_hostname(mmc);  in sdhci_led_register()
420 	host->led.brightness_set = sdhci_led_control;  in sdhci_led_register()
422 	return led_classdev_register(mmc_dev(mmc), &host->led);  in sdhci_led_register()
425 static void sdhci_led_unregister(struct sdhci_host *host)  in sdhci_led_unregister()  argument
427 	if (host->quirks & SDHCI_QUIRK_NO_LED)  in sdhci_led_unregister()
430 	led_classdev_unregister(&host->led);  in sdhci_led_unregister()
433 static inline void sdhci_led_activate(struct sdhci_host *host)  in sdhci_led_activate()  argument
437 static inline void sdhci_led_deactivate(struct sdhci_host *host)  in sdhci_led_deactivate()  argument
443 static inline int sdhci_led_register(struct sdhci_host *host)  in sdhci_led_register()  argument
448 static inline void sdhci_led_unregister(struct sdhci_host *host)  in sdhci_led_unregister()  argument
452 static inline void sdhci_led_activate(struct sdhci_host *host)  in sdhci_led_activate()  argument
454 	__sdhci_led_activate(host);  in sdhci_led_activate()
457 static inline void sdhci_led_deactivate(struct sdhci_host *host)  in sdhci_led_deactivate()  argument
459 	__sdhci_led_deactivate(host);  in sdhci_led_deactivate()
464 static void sdhci_mod_timer(struct sdhci_host *host, struct mmc_request *mrq,  in sdhci_mod_timer()  argument
468 		mod_timer(&host->data_timer, timeout);  in sdhci_mod_timer()
470 		mod_timer(&host->timer, timeout);  in sdhci_mod_timer()
473 static void sdhci_del_timer(struct sdhci_host *host, struct mmc_request *mrq)  in sdhci_del_timer()  argument
476 		del_timer(&host->data_timer);  in sdhci_del_timer()
478 		del_timer(&host->timer);  in sdhci_del_timer()
481 static inline bool sdhci_has_requests(struct sdhci_host *host)  in sdhci_has_requests()  argument
483 	return host->cmd || host->data_cmd;  in sdhci_has_requests()
492 static void sdhci_read_block_pio(struct sdhci_host *host)  in sdhci_read_block_pio()  argument
501 	blksize = host->data->blksz;  in sdhci_read_block_pio()
507 		BUG_ON(!sg_miter_next(&host->sg_miter));  in sdhci_read_block_pio()
509 		len = min(host->sg_miter.length, blksize);  in sdhci_read_block_pio()
512 		host->sg_miter.consumed = len;  in sdhci_read_block_pio()
514 		buf = host->sg_miter.addr;  in sdhci_read_block_pio()
518 				scratch = sdhci_readl(host, SDHCI_BUFFER);  in sdhci_read_block_pio()
531 	sg_miter_stop(&host->sg_miter);  in sdhci_read_block_pio()
536 static void sdhci_write_block_pio(struct sdhci_host *host)  in sdhci_write_block_pio()  argument
545 	blksize = host->data->blksz;  in sdhci_write_block_pio()
552 		BUG_ON(!sg_miter_next(&host->sg_miter));  in sdhci_write_block_pio()
554 		len = min(host->sg_miter.length, blksize);  in sdhci_write_block_pio()
557 		host->sg_miter.consumed = len;  in sdhci_write_block_pio()
559 		buf = host->sg_miter.addr;  in sdhci_write_block_pio()
569 				sdhci_writel(host, scratch, SDHCI_BUFFER);  in sdhci_write_block_pio()
576 	sg_miter_stop(&host->sg_miter);  in sdhci_write_block_pio()
581 static void sdhci_transfer_pio(struct sdhci_host *host)  in sdhci_transfer_pio()  argument
585 	if (host->blocks == 0)  in sdhci_transfer_pio()
588 	if (host->data->flags & MMC_DATA_READ)  in sdhci_transfer_pio()
598 	if ((host->quirks & SDHCI_QUIRK_BROKEN_SMALL_PIO) &&  in sdhci_transfer_pio()
599 		(host->data->blocks == 1))  in sdhci_transfer_pio()
602 	while (sdhci_readl(host, SDHCI_PRESENT_STATE) & mask) {  in sdhci_transfer_pio()
603 		if (host->quirks & SDHCI_QUIRK_PIO_NEEDS_DELAY)  in sdhci_transfer_pio()
606 		if (host->data->flags & MMC_DATA_READ)  in sdhci_transfer_pio()
607 			sdhci_read_block_pio(host);  in sdhci_transfer_pio()
609 			sdhci_write_block_pio(host);  in sdhci_transfer_pio()
611 		host->blocks--;  in sdhci_transfer_pio()
612 		if (host->blocks == 0)  in sdhci_transfer_pio()
619 static int sdhci_pre_dma_transfer(struct sdhci_host *host,  in sdhci_pre_dma_transfer()  argument
632 	if (host->bounce_buffer) {  in sdhci_pre_dma_transfer()
635 		if (length > host->bounce_buffer_size) {  in sdhci_pre_dma_transfer()
637 			       mmc_hostname(host->mmc), length,  in sdhci_pre_dma_transfer()
638 			       host->bounce_buffer_size);  in sdhci_pre_dma_transfer()
643 			if (host->ops->copy_to_bounce_buffer) {  in sdhci_pre_dma_transfer()
644 				host->ops->copy_to_bounce_buffer(host,  in sdhci_pre_dma_transfer()
648 						  host->bounce_buffer, length);  in sdhci_pre_dma_transfer()
652 		dma_sync_single_for_device(host->mmc->parent,  in sdhci_pre_dma_transfer()
653 					   host->bounce_addr,  in sdhci_pre_dma_transfer()
654 					   host->bounce_buffer_size,  in sdhci_pre_dma_transfer()
660 		sg_count = dma_map_sg(mmc_dev(host->mmc),  in sdhci_pre_dma_transfer()
686 void sdhci_adma_write_desc(struct sdhci_host *host, void **desc,  in sdhci_adma_write_desc()  argument
696 	if (host->flags & SDHCI_USE_64_BIT_DMA)  in sdhci_adma_write_desc()
699 	*desc += host->desc_sz;  in sdhci_adma_write_desc()
703 static inline void __sdhci_adma_write_desc(struct sdhci_host *host,  in __sdhci_adma_write_desc()  argument
707 	if (host->ops->adma_write_desc)  in __sdhci_adma_write_desc()
708 		host->ops->adma_write_desc(host, desc, addr, len, cmd);  in __sdhci_adma_write_desc()
710 		sdhci_adma_write_desc(host, desc, addr, len, cmd);  in __sdhci_adma_write_desc()
721 static void sdhci_adma_table_pre(struct sdhci_host *host,  in sdhci_adma_table_pre()  argument
736 	host->sg_count = sg_count;  in sdhci_adma_table_pre()
738 	desc = host->adma_table;  in sdhci_adma_table_pre()
739 	align = host->align_buffer;  in sdhci_adma_table_pre()
741 	align_addr = host->align_addr;  in sdhci_adma_table_pre()
743 	for_each_sg(data->sg, sg, host->sg_count, i) {  in sdhci_adma_table_pre()
763 			__sdhci_adma_write_desc(host, &desc, align_addr,  in sdhci_adma_table_pre()
779 			__sdhci_adma_write_desc(host, &desc, addr, len,  in sdhci_adma_table_pre()
786 		WARN_ON((desc - host->adma_table) >= host->adma_table_sz);  in sdhci_adma_table_pre()
789 	if (host->quirks & SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC) {  in sdhci_adma_table_pre()
791 		if (desc != host->adma_table) {  in sdhci_adma_table_pre()
792 			desc -= host->desc_sz;  in sdhci_adma_table_pre()
797 		__sdhci_adma_write_desc(host, &desc, 0, 0, ADMA2_NOP_END_VALID);  in sdhci_adma_table_pre()
801 static void sdhci_adma_table_post(struct sdhci_host *host,  in sdhci_adma_table_post()  argument
814 		for_each_sg(data->sg, sg, host->sg_count, i)  in sdhci_adma_table_post()
821 			dma_sync_sg_for_cpu(mmc_dev(host->mmc), data->sg,  in sdhci_adma_table_post()
824 			align = host->align_buffer;  in sdhci_adma_table_post()
826 			for_each_sg(data->sg, sg, host->sg_count, i) {  in sdhci_adma_table_post()
842 static void sdhci_set_adma_addr(struct sdhci_host *host, dma_addr_t addr)  in sdhci_set_adma_addr()  argument
844 	sdhci_writel(host, lower_32_bits(addr), SDHCI_ADMA_ADDRESS);  in sdhci_set_adma_addr()
845 	if (host->flags & SDHCI_USE_64_BIT_DMA)  in sdhci_set_adma_addr()
846 		sdhci_writel(host, upper_32_bits(addr), SDHCI_ADMA_ADDRESS_HI);  in sdhci_set_adma_addr()
849 static dma_addr_t sdhci_sdma_address(struct sdhci_host *host)  in sdhci_sdma_address()  argument
851 	if (host->bounce_buffer)  in sdhci_sdma_address()
852 		return host->bounce_addr;  in sdhci_sdma_address()
854 		return sg_dma_address(host->data->sg);  in sdhci_sdma_address()
857 static void sdhci_set_sdma_addr(struct sdhci_host *host, dma_addr_t addr)  in sdhci_set_sdma_addr()  argument
859 	if (host->v4_mode)  in sdhci_set_sdma_addr()
860 		sdhci_set_adma_addr(host, addr);  in sdhci_set_sdma_addr()
862 		sdhci_writel(host, addr, SDHCI_DMA_ADDRESS);  in sdhci_set_sdma_addr()
865 static unsigned int sdhci_target_timeout(struct sdhci_host *host,  in sdhci_target_timeout()  argument
876 		if (host->clock && data->timeout_clks) {  in sdhci_target_timeout()
881 			 * host->clock is in Hz.  target_timeout is in us.  in sdhci_target_timeout()
885 			if (do_div(val, host->clock))  in sdhci_target_timeout()
894 static void sdhci_calc_sw_timeout(struct sdhci_host *host,  in sdhci_calc_sw_timeout()  argument
898 	struct mmc_host *mmc = host->mmc;  in sdhci_calc_sw_timeout()
906 	target_timeout = sdhci_target_timeout(host, cmd, data);  in sdhci_calc_sw_timeout()
911 		freq = host->mmc->actual_clock ? : host->clock;  in sdhci_calc_sw_timeout()
917 		host->data_timeout = data->blocks * target_timeout +  in sdhci_calc_sw_timeout()
920 		host->data_timeout = target_timeout;  in sdhci_calc_sw_timeout()
923 	if (host->data_timeout)  in sdhci_calc_sw_timeout()
924 		host->data_timeout += MMC_CMD_TRANSFER_TIME;  in sdhci_calc_sw_timeout()
927 static u8 sdhci_calc_timeout(struct sdhci_host *host, struct mmc_command *cmd,  in sdhci_calc_timeout()  argument
937 	 * If the host controller provides us with an incorrect timeout  in sdhci_calc_timeout()
942 	if (host->quirks & SDHCI_QUIRK_BROKEN_TIMEOUT_VAL)  in sdhci_calc_timeout()
955 	target_timeout = sdhci_target_timeout(host, cmd, data);  in sdhci_calc_timeout()
963 	 * (2) host->timeout_clk < 2^16  in sdhci_calc_timeout()
968 	current_timeout = (1 << 13) * 1000 / host->timeout_clk;  in sdhci_calc_timeout()
977 		if (!(host->quirks2 & SDHCI_QUIRK2_DISABLE_HW_TIMEOUT))  in sdhci_calc_timeout()
988 static void sdhci_set_transfer_irqs(struct sdhci_host *host)  in sdhci_set_transfer_irqs()  argument
993 	if (host->flags & SDHCI_REQ_USE_DMA)  in sdhci_set_transfer_irqs()
994 		host->ier = (host->ier & ~pio_irqs) | dma_irqs;  in sdhci_set_transfer_irqs()
996 		host->ier = (host->ier & ~dma_irqs) | pio_irqs;  in sdhci_set_transfer_irqs()
998 	if (host->flags & (SDHCI_AUTO_CMD23 | SDHCI_AUTO_CMD12))  in sdhci_set_transfer_irqs()
999 		host->ier |= SDHCI_INT_AUTO_CMD_ERR;  in sdhci_set_transfer_irqs()
1001 		host->ier &= ~SDHCI_INT_AUTO_CMD_ERR;  in sdhci_set_transfer_irqs()
1003 	sdhci_writel(host, host->ier, SDHCI_INT_ENABLE);  in sdhci_set_transfer_irqs()
1004 	sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE);  in sdhci_set_transfer_irqs()
1007 void sdhci_set_data_timeout_irq(struct sdhci_host *host, bool enable)  in sdhci_set_data_timeout_irq()  argument
1010 		host->ier |= SDHCI_INT_DATA_TIMEOUT;  in sdhci_set_data_timeout_irq()
1012 		host->ier &= ~SDHCI_INT_DATA_TIMEOUT;  in sdhci_set_data_timeout_irq()
1013 	sdhci_writel(host, host->ier, SDHCI_INT_ENABLE);  in sdhci_set_data_timeout_irq()
1014 	sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE);  in sdhci_set_data_timeout_irq()
1018 void __sdhci_set_timeout(struct sdhci_host *host, struct mmc_command *cmd)  in __sdhci_set_timeout()  argument
1021 	u8 count = sdhci_calc_timeout(host, cmd, &too_big);  in __sdhci_set_timeout()
1024 	    host->quirks2 & SDHCI_QUIRK2_DISABLE_HW_TIMEOUT) {  in __sdhci_set_timeout()
1025 		sdhci_calc_sw_timeout(host, cmd);  in __sdhci_set_timeout()
1026 		sdhci_set_data_timeout_irq(host, false);  in __sdhci_set_timeout()
1027 	} else if (!(host->ier & SDHCI_INT_DATA_TIMEOUT)) {  in __sdhci_set_timeout()
1028 		sdhci_set_data_timeout_irq(host, true);  in __sdhci_set_timeout()
1031 	sdhci_writeb(host, count, SDHCI_TIMEOUT_CONTROL);  in __sdhci_set_timeout()
1035 static void sdhci_set_timeout(struct sdhci_host *host, struct mmc_command *cmd)  in sdhci_set_timeout()  argument
1037 	if (host->ops->set_timeout)  in sdhci_set_timeout()
1038 		host->ops->set_timeout(host, cmd);  in sdhci_set_timeout()
1040 		__sdhci_set_timeout(host, cmd);  in sdhci_set_timeout()
1043 static void sdhci_initialize_data(struct sdhci_host *host,  in sdhci_initialize_data()  argument
1046 	WARN_ON(host->data);  in sdhci_initialize_data()
1050 	BUG_ON(data->blksz > host->mmc->max_blk_size);  in sdhci_initialize_data()
1053 	host->data = data;  in sdhci_initialize_data()
1054 	host->data_early = 0;  in sdhci_initialize_data()
1055 	host->data->bytes_xfered = 0;  in sdhci_initialize_data()
1058 static inline void sdhci_set_block_info(struct sdhci_host *host,  in sdhci_set_block_info()  argument
1062 	sdhci_writew(host,  in sdhci_set_block_info()
1063 		     SDHCI_MAKE_BLKSZ(host->sdma_boundary, data->blksz),  in sdhci_set_block_info()
1069 	if (host->version >= SDHCI_SPEC_410 && host->v4_mode &&  in sdhci_set_block_info()
1070 	    (host->quirks2 & SDHCI_QUIRK2_USE_32BIT_BLK_CNT)) {  in sdhci_set_block_info()
1071 		if (sdhci_readw(host, SDHCI_BLOCK_COUNT))  in sdhci_set_block_info()
1072 			sdhci_writew(host, 0, SDHCI_BLOCK_COUNT);  in sdhci_set_block_info()
1073 		sdhci_writew(host, data->blocks, SDHCI_32BIT_BLK_CNT);  in sdhci_set_block_info()
1075 		sdhci_writew(host, data->blocks, SDHCI_BLOCK_COUNT);  in sdhci_set_block_info()
1079 static void sdhci_prepare_data(struct sdhci_host *host, struct mmc_command *cmd)  in sdhci_prepare_data()  argument
1083 	sdhci_initialize_data(host, data);  in sdhci_prepare_data()
1085 	if (host->flags & (SDHCI_USE_SDMA | SDHCI_USE_ADMA)) {  in sdhci_prepare_data()
1090 		host->flags |= SDHCI_REQ_USE_DMA;  in sdhci_prepare_data()
1101 		if (host->flags & SDHCI_USE_ADMA) {  in sdhci_prepare_data()
1102 			if (host->quirks & SDHCI_QUIRK_32BIT_ADMA_SIZE) {  in sdhci_prepare_data()
1112 			if (host->quirks & SDHCI_QUIRK_32BIT_DMA_SIZE)  in sdhci_prepare_data()
1114 			if (host->quirks & SDHCI_QUIRK_32BIT_DMA_ADDR)  in sdhci_prepare_data()
1123 					host->flags &= ~SDHCI_REQ_USE_DMA;  in sdhci_prepare_data()
1128 					host->flags &= ~SDHCI_REQ_USE_DMA;  in sdhci_prepare_data()
1135 	if (host->flags & SDHCI_REQ_USE_DMA) {  in sdhci_prepare_data()
1136 		int sg_cnt = sdhci_pre_dma_transfer(host, data, COOKIE_MAPPED);  in sdhci_prepare_data()
1144 			host->flags &= ~SDHCI_REQ_USE_DMA;  in sdhci_prepare_data()
1145 		} else if (host->flags & SDHCI_USE_ADMA) {  in sdhci_prepare_data()
1146 			sdhci_adma_table_pre(host, data, sg_cnt);  in sdhci_prepare_data()
1147 			sdhci_set_adma_addr(host, host->adma_addr);  in sdhci_prepare_data()
1150 			sdhci_set_sdma_addr(host, sdhci_sdma_address(host));  in sdhci_prepare_data()
1154 	sdhci_config_dma(host);  in sdhci_prepare_data()
1156 	if (!(host->flags & SDHCI_REQ_USE_DMA)) {  in sdhci_prepare_data()
1160 		if (host->data->flags & MMC_DATA_READ)  in sdhci_prepare_data()
1164 		sg_miter_start(&host->sg_miter, data->sg, data->sg_len, flags);  in sdhci_prepare_data()
1165 		host->blocks = data->blocks;  in sdhci_prepare_data()
1168 	sdhci_set_transfer_irqs(host);  in sdhci_prepare_data()
1170 	sdhci_set_block_info(host, data);  in sdhci_prepare_data()
1175 static int sdhci_external_dma_init(struct sdhci_host *host)  in sdhci_external_dma_init()  argument
1178 	struct mmc_host *mmc = host->mmc;  in sdhci_external_dma_init()
1180 	host->tx_chan = dma_request_chan(mmc->parent, "tx");  in sdhci_external_dma_init()
1181 	if (IS_ERR(host->tx_chan)) {  in sdhci_external_dma_init()
1182 		ret = PTR_ERR(host->tx_chan);  in sdhci_external_dma_init()
1185 		host->tx_chan = NULL;  in sdhci_external_dma_init()
1189 	host->rx_chan = dma_request_chan(mmc->parent, "rx");  in sdhci_external_dma_init()
1190 	if (IS_ERR(host->rx_chan)) {  in sdhci_external_dma_init()
1191 		if (host->tx_chan) {  in sdhci_external_dma_init()
1192 			dma_release_channel(host->tx_chan);  in sdhci_external_dma_init()
1193 			host->tx_chan = NULL;  in sdhci_external_dma_init()
1196 		ret = PTR_ERR(host->rx_chan);  in sdhci_external_dma_init()
1199 		host->rx_chan = NULL;  in sdhci_external_dma_init()
1205 static struct dma_chan *sdhci_external_dma_channel(struct sdhci_host *host,  in sdhci_external_dma_channel()  argument
1208 	return data->flags & MMC_DATA_WRITE ? host->tx_chan : host->rx_chan;  in sdhci_external_dma_channel()
1211 static int sdhci_external_dma_setup(struct sdhci_host *host,  in sdhci_external_dma_setup()  argument
1223 	if (!host->mapbase)  in sdhci_external_dma_setup()
1227 	cfg.src_addr = host->mapbase + SDHCI_BUFFER;  in sdhci_external_dma_setup()
1228 	cfg.dst_addr = host->mapbase + SDHCI_BUFFER;  in sdhci_external_dma_setup()
1240 	chan = sdhci_external_dma_channel(host, data);  in sdhci_external_dma_setup()
1246 	sg_cnt = sdhci_pre_dma_transfer(host, data, COOKIE_MAPPED);  in sdhci_external_dma_setup()
1266 static void sdhci_external_dma_release(struct sdhci_host *host)  in sdhci_external_dma_release()  argument
1268 	if (host->tx_chan) {  in sdhci_external_dma_release()
1269 		dma_release_channel(host->tx_chan);  in sdhci_external_dma_release()
1270 		host->tx_chan = NULL;  in sdhci_external_dma_release()
1273 	if (host->rx_chan) {  in sdhci_external_dma_release()
1274 		dma_release_channel(host->rx_chan);  in sdhci_external_dma_release()
1275 		host->rx_chan = NULL;  in sdhci_external_dma_release()
1278 	sdhci_switch_external_dma(host, false);  in sdhci_external_dma_release()
1281 static void __sdhci_external_dma_prepare_data(struct sdhci_host *host,  in __sdhci_external_dma_prepare_data()  argument
1286 	sdhci_initialize_data(host, data);  in __sdhci_external_dma_prepare_data()
1288 	host->flags |= SDHCI_REQ_USE_DMA;  in __sdhci_external_dma_prepare_data()
1289 	sdhci_set_transfer_irqs(host);  in __sdhci_external_dma_prepare_data()
1291 	sdhci_set_block_info(host, data);  in __sdhci_external_dma_prepare_data()
1294 static void sdhci_external_dma_prepare_data(struct sdhci_host *host,  in sdhci_external_dma_prepare_data()  argument
1297 	if (!sdhci_external_dma_setup(host, cmd)) {  in sdhci_external_dma_prepare_data()
1298 		__sdhci_external_dma_prepare_data(host, cmd);  in sdhci_external_dma_prepare_data()
1300 		sdhci_external_dma_release(host);  in sdhci_external_dma_prepare_data()
1302 		       mmc_hostname(host->mmc));  in sdhci_external_dma_prepare_data()
1303 		sdhci_prepare_data(host, cmd);  in sdhci_external_dma_prepare_data()
1307 static void sdhci_external_dma_pre_transfer(struct sdhci_host *host,  in sdhci_external_dma_pre_transfer()  argument
1315 	chan = sdhci_external_dma_channel(host, cmd->data);  in sdhci_external_dma_pre_transfer()
1322 static inline int sdhci_external_dma_init(struct sdhci_host *host)  in sdhci_external_dma_init()  argument
1327 static inline void sdhci_external_dma_release(struct sdhci_host *host)  in sdhci_external_dma_release()  argument
1331 static inline void sdhci_external_dma_prepare_data(struct sdhci_host *host,  in sdhci_external_dma_prepare_data()  argument
1338 static inline void sdhci_external_dma_pre_transfer(struct sdhci_host *host,  in sdhci_external_dma_pre_transfer()  argument
1343 static inline struct dma_chan *sdhci_external_dma_channel(struct sdhci_host *host,  in sdhci_external_dma_channel()  argument
1351 void sdhci_switch_external_dma(struct sdhci_host *host, bool en)  in sdhci_switch_external_dma()  argument
1353 	host->use_external_dma = en;  in sdhci_switch_external_dma()
1357 static inline bool sdhci_auto_cmd12(struct sdhci_host *host,  in sdhci_auto_cmd12()  argument
1360 	return !mrq->sbc && (host->flags & SDHCI_AUTO_CMD12) &&  in sdhci_auto_cmd12()
1364 static inline bool sdhci_auto_cmd23(struct sdhci_host *host,  in sdhci_auto_cmd23()  argument
1367 	return mrq->sbc && (host->flags & SDHCI_AUTO_CMD23);  in sdhci_auto_cmd23()
1370 static inline bool sdhci_manual_cmd23(struct sdhci_host *host,  in sdhci_manual_cmd23()  argument
1373 	return mrq->sbc && !(host->flags & SDHCI_AUTO_CMD23);  in sdhci_manual_cmd23()
1376 static inline void sdhci_auto_cmd_select(struct sdhci_host *host,  in sdhci_auto_cmd_select()  argument
1380 	bool use_cmd12 = sdhci_auto_cmd12(host, cmd->mrq) &&  in sdhci_auto_cmd_select()
1382 	bool use_cmd23 = sdhci_auto_cmd23(host, cmd->mrq);  in sdhci_auto_cmd_select()
1391 	if (host->version >= SDHCI_SPEC_410 && host->v4_mode &&  in sdhci_auto_cmd_select()
1395 		ctrl2 = sdhci_readw(host, SDHCI_HOST_CONTROL2);  in sdhci_auto_cmd_select()
1400 		sdhci_writew(host, ctrl2, SDHCI_HOST_CONTROL2);  in sdhci_auto_cmd_select()
1415 static void sdhci_set_transfer_mode(struct sdhci_host *host,  in sdhci_set_transfer_mode()  argument
1422 		if (host->quirks2 &  in sdhci_set_transfer_mode()
1426 				sdhci_writew(host, 0x0, SDHCI_TRANSFER_MODE);  in sdhci_set_transfer_mode()
1429 			mode = sdhci_readw(host, SDHCI_TRANSFER_MODE);  in sdhci_set_transfer_mode()
1430 			sdhci_writew(host, mode & ~(SDHCI_TRNS_AUTO_CMD12 |  in sdhci_set_transfer_mode()
1436 	WARN_ON(!host->data);  in sdhci_set_transfer_mode()
1438 	if (!(host->quirks2 & SDHCI_QUIRK2_SUPPORT_SINGLE))  in sdhci_set_transfer_mode()
1443 		sdhci_auto_cmd_select(host, cmd, &mode);  in sdhci_set_transfer_mode()
1444 		if (sdhci_auto_cmd23(host, cmd->mrq))  in sdhci_set_transfer_mode()
1445 			sdhci_writel(host, cmd->mrq->sbc->arg, SDHCI_ARGUMENT2);  in sdhci_set_transfer_mode()
1450 	if (host->flags & SDHCI_REQ_USE_DMA)  in sdhci_set_transfer_mode()
1453 	sdhci_writew(host, mode, SDHCI_TRANSFER_MODE);  in sdhci_set_transfer_mode()
1456 static bool sdhci_needs_reset(struct sdhci_host *host, struct mmc_request *mrq)  in sdhci_needs_reset()  argument
1458 	return (!(host->flags & SDHCI_DEVICE_DEAD) &&  in sdhci_needs_reset()
1462 		 (host->quirks & SDHCI_QUIRK_RESET_AFTER_REQUEST)));  in sdhci_needs_reset()
1465 static void sdhci_set_mrq_done(struct sdhci_host *host, struct mmc_request *mrq)  in sdhci_set_mrq_done()  argument
1470 		if (host->mrqs_done[i] == mrq) {  in sdhci_set_mrq_done()
1477 		if (!host->mrqs_done[i]) {  in sdhci_set_mrq_done()
1478 			host->mrqs_done[i] = mrq;  in sdhci_set_mrq_done()
1486 static void __sdhci_finish_mrq(struct sdhci_host *host, struct mmc_request *mrq)  in __sdhci_finish_mrq()  argument
1488 	if (host->cmd && host->cmd->mrq == mrq)  in __sdhci_finish_mrq()
1489 		host->cmd = NULL;  in __sdhci_finish_mrq()
1491 	if (host->data_cmd && host->data_cmd->mrq == mrq)  in __sdhci_finish_mrq()
1492 		host->data_cmd = NULL;  in __sdhci_finish_mrq()
1494 	if (host->deferred_cmd && host->deferred_cmd->mrq == mrq)  in __sdhci_finish_mrq()
1495 		host->deferred_cmd = NULL;  in __sdhci_finish_mrq()
1497 	if (host->data && host->data->mrq == mrq)  in __sdhci_finish_mrq()
1498 		host->data = NULL;  in __sdhci_finish_mrq()
1500 	if (sdhci_needs_reset(host, mrq))  in __sdhci_finish_mrq()
1501 		host->pending_reset = true;  in __sdhci_finish_mrq()
1503 	sdhci_set_mrq_done(host, mrq);  in __sdhci_finish_mrq()
1505 	sdhci_del_timer(host, mrq);  in __sdhci_finish_mrq()
1507 	if (!sdhci_has_requests(host))  in __sdhci_finish_mrq()
1508 		sdhci_led_deactivate(host);  in __sdhci_finish_mrq()
1511 static void sdhci_finish_mrq(struct sdhci_host *host, struct mmc_request *mrq)  in sdhci_finish_mrq()  argument
1513 	__sdhci_finish_mrq(host, mrq);  in sdhci_finish_mrq()
1515 	queue_work(host->complete_wq, &host->complete_work);  in sdhci_finish_mrq()
1518 static void __sdhci_finish_data(struct sdhci_host *host, bool sw_data_timeout)  in __sdhci_finish_data()  argument
1520 	struct mmc_command *data_cmd = host->data_cmd;  in __sdhci_finish_data()
1521 	struct mmc_data *data = host->data;  in __sdhci_finish_data()
1523 	host->data = NULL;  in __sdhci_finish_data()
1524 	host->data_cmd = NULL;  in __sdhci_finish_data()
1531 		if (!host->cmd || host->cmd == data_cmd)  in __sdhci_finish_data()
1532 			sdhci_do_reset(host, SDHCI_RESET_CMD);  in __sdhci_finish_data()
1533 		sdhci_do_reset(host, SDHCI_RESET_DATA);  in __sdhci_finish_data()
1536 	if ((host->flags & (SDHCI_REQ_USE_DMA | SDHCI_USE_ADMA)) ==  in __sdhci_finish_data()
1538 		sdhci_adma_table_post(host, data);  in __sdhci_finish_data()
1558 	    ((!data->mrq->sbc && !sdhci_auto_cmd12(host, data->mrq)) ||  in __sdhci_finish_data()
1566 			__sdhci_finish_mrq(host, data->mrq);  in __sdhci_finish_data()
1569 			host->cmd = NULL;  in __sdhci_finish_data()
1570 			if (!sdhci_send_command(host, data->stop)) {  in __sdhci_finish_data()
1577 					__sdhci_finish_mrq(host, data->mrq);  in __sdhci_finish_data()
1579 					WARN_ON(host->deferred_cmd);  in __sdhci_finish_data()
1580 					host->deferred_cmd = data->stop;  in __sdhci_finish_data()
1585 		__sdhci_finish_mrq(host, data->mrq);  in __sdhci_finish_data()
1589 static void sdhci_finish_data(struct sdhci_host *host)  in sdhci_finish_data()  argument
1591 	__sdhci_finish_data(host, false);  in sdhci_finish_data()
1594 static bool sdhci_send_command(struct sdhci_host *host, struct mmc_command *cmd)  in sdhci_send_command()  argument
1600 	WARN_ON(host->cmd);  in sdhci_send_command()
1605 	if ((host->quirks2 & SDHCI_QUIRK2_STOP_WITH_TC) &&  in sdhci_send_command()
1618 	if (sdhci_readl(host, SDHCI_PRESENT_STATE) & mask)  in sdhci_send_command()
1621 	host->cmd = cmd;  in sdhci_send_command()
1622 	host->data_timeout = 0;  in sdhci_send_command()
1624 		WARN_ON(host->data_cmd);  in sdhci_send_command()
1625 		host->data_cmd = cmd;  in sdhci_send_command()
1626 		sdhci_set_timeout(host, cmd);  in sdhci_send_command()
1630 		if (host->use_external_dma)  in sdhci_send_command()
1631 			sdhci_external_dma_prepare_data(host, cmd);  in sdhci_send_command()
1633 			sdhci_prepare_data(host, cmd);  in sdhci_send_command()
1636 	sdhci_writel(host, cmd->arg, SDHCI_ARGUMENT);  in sdhci_send_command()
1638 	sdhci_set_transfer_mode(host, cmd);  in sdhci_send_command()
1670 	if (host->data_timeout)  in sdhci_send_command()
1671 		timeout += nsecs_to_jiffies(host->data_timeout);  in sdhci_send_command()
1676 	sdhci_mod_timer(host, cmd->mrq, timeout);  in sdhci_send_command()
1678 	if (host->use_external_dma)  in sdhci_send_command()
1679 		sdhci_external_dma_pre_transfer(host, cmd);  in sdhci_send_command()
1681 	sdhci_writew(host, SDHCI_MAKE_CMD(cmd->opcode, flags), SDHCI_COMMAND);  in sdhci_send_command()
1686 static bool sdhci_present_error(struct sdhci_host *host,  in sdhci_present_error()  argument
1689 	if (!present || host->flags & SDHCI_DEVICE_DEAD) {  in sdhci_present_error()
1697 static bool sdhci_send_command_retry(struct sdhci_host *host,  in sdhci_send_command_retry()  argument
1700 	__releases(host->lock)  in sdhci_send_command_retry()
1701 	__acquires(host->lock)  in sdhci_send_command_retry()
1703 	struct mmc_command *deferred_cmd = host->deferred_cmd;  in sdhci_send_command_retry()
1707 	while (!sdhci_send_command(host, cmd)) {  in sdhci_send_command_retry()
1710 			       mmc_hostname(host->mmc));  in sdhci_send_command_retry()
1711 			sdhci_dumpregs(host);  in sdhci_send_command_retry()
1716 		spin_unlock_irqrestore(&host->lock, flags);  in sdhci_send_command_retry()
1720 		present = host->mmc->ops->get_cd(host->mmc);  in sdhci_send_command_retry()
1722 		spin_lock_irqsave(&host->lock, flags);  in sdhci_send_command_retry()
1725 		if (cmd == deferred_cmd && cmd != host->deferred_cmd)  in sdhci_send_command_retry()
1728 		if (sdhci_present_error(host, cmd, present))  in sdhci_send_command_retry()
1732 	if (cmd == host->deferred_cmd)  in sdhci_send_command_retry()
1733 		host->deferred_cmd = NULL;  in sdhci_send_command_retry()
1738 static void sdhci_read_rsp_136(struct sdhci_host *host, struct mmc_command *cmd)  in sdhci_read_rsp_136()  argument
1744 		cmd->resp[i] = sdhci_readl(host, reg);  in sdhci_read_rsp_136()
1747 	if (host->quirks2 & SDHCI_QUIRK2_RSP_136_HAS_CRC)  in sdhci_read_rsp_136()
1758 static void sdhci_finish_command(struct sdhci_host *host)  in sdhci_finish_command()  argument
1760 	struct mmc_command *cmd = host->cmd;  in sdhci_finish_command()
1762 	host->cmd = NULL;  in sdhci_finish_command()
1766 			sdhci_read_rsp_136(host, cmd);  in sdhci_finish_command()
1768 			cmd->resp[0] = sdhci_readl(host, SDHCI_RESPONSE);  in sdhci_finish_command()
1773 		mmc_command_done(host->mmc, cmd->mrq);  in sdhci_finish_command()
1776 	 * The host can send and interrupt when the busy state has  in sdhci_finish_command()
1788 		} else if (!(host->quirks & SDHCI_QUIRK_NO_BUSY_IRQ) &&  in sdhci_finish_command()
1789 			   cmd == host->data_cmd) {  in sdhci_finish_command()
1797 		if (!sdhci_send_command(host, cmd->mrq->cmd)) {  in sdhci_finish_command()
1798 			WARN_ON(host->deferred_cmd);  in sdhci_finish_command()
1799 			host->deferred_cmd = cmd->mrq->cmd;  in sdhci_finish_command()
1804 		if (host->data && host->data_early)  in sdhci_finish_command()
1805 			sdhci_finish_data(host);  in sdhci_finish_command()
1808 			__sdhci_finish_mrq(host, cmd->mrq);  in sdhci_finish_command()
1812 static u16 sdhci_get_preset_value(struct sdhci_host *host)  in sdhci_get_preset_value()  argument
1816 	switch (host->timing) {  in sdhci_get_preset_value()
1819 		preset = sdhci_readw(host, SDHCI_PRESET_FOR_HIGH_SPEED);  in sdhci_get_preset_value()
1822 		preset = sdhci_readw(host, SDHCI_PRESET_FOR_SDR12);  in sdhci_get_preset_value()
1825 		preset = sdhci_readw(host, SDHCI_PRESET_FOR_SDR25);  in sdhci_get_preset_value()
1828 		preset = sdhci_readw(host, SDHCI_PRESET_FOR_SDR50);  in sdhci_get_preset_value()
1832 		preset = sdhci_readw(host, SDHCI_PRESET_FOR_SDR104);  in sdhci_get_preset_value()
1836 		preset = sdhci_readw(host, SDHCI_PRESET_FOR_DDR50);  in sdhci_get_preset_value()
1839 		preset = sdhci_readw(host, SDHCI_PRESET_FOR_HS400);  in sdhci_get_preset_value()
1843 			mmc_hostname(host->mmc));  in sdhci_get_preset_value()
1844 		preset = sdhci_readw(host, SDHCI_PRESET_FOR_SDR12);  in sdhci_get_preset_value()
1850 u16 sdhci_calc_clk(struct sdhci_host *host, unsigned int clock,  in sdhci_calc_clk()  argument
1858 	if (host->version >= SDHCI_SPEC_300) {  in sdhci_calc_clk()
1859 		if (host->preset_enabled) {  in sdhci_calc_clk()
1862 			clk = sdhci_readw(host, SDHCI_CLOCK_CONTROL);  in sdhci_calc_clk()
1863 			pre_val = sdhci_get_preset_value(host);  in sdhci_calc_clk()
1865 			if (host->clk_mul &&  in sdhci_calc_clk()
1869 				clk_mul = host->clk_mul;  in sdhci_calc_clk()
1877 		 * Check if the Host Controller supports Programmable Clock  in sdhci_calc_clk()
1880 		if (host->clk_mul) {  in sdhci_calc_clk()
1882 				if ((host->max_clk * host->clk_mul / div)  in sdhci_calc_clk()
1886 			if ((host->max_clk * host->clk_mul / div) <= clock) {  in sdhci_calc_clk()
1893 				clk_mul = host->clk_mul;  in sdhci_calc_clk()
1904 		if (!host->clk_mul || switch_base_clk) {  in sdhci_calc_clk()
1906 			if (host->max_clk <= clock)  in sdhci_calc_clk()
1911 					if ((host->max_clk / div) <= clock)  in sdhci_calc_clk()
1917 			if ((host->quirks2 & SDHCI_QUIRK2_CLOCK_DIV_ZERO_BROKEN)  in sdhci_calc_clk()
1918 				&& !div && host->max_clk <= 25000000)  in sdhci_calc_clk()
1924 			if ((host->max_clk / div) <= clock)  in sdhci_calc_clk()
1933 		*actual_clock = (host->max_clk * clk_mul) / real_div;  in sdhci_calc_clk()
1942 void sdhci_enable_clk(struct sdhci_host *host, u16 clk)  in sdhci_enable_clk()  argument
1947 	sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL);  in sdhci_enable_clk()
1954 		clk = sdhci_readw(host, SDHCI_CLOCK_CONTROL);  in sdhci_enable_clk()
1959 			       mmc_hostname(host->mmc));  in sdhci_enable_clk()
1960 			sdhci_dumpregs(host);  in sdhci_enable_clk()
1966 	if (host->version >= SDHCI_SPEC_410 && host->v4_mode) {  in sdhci_enable_clk()
1969 		sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL);  in sdhci_enable_clk()
1976 			clk = sdhci_readw(host, SDHCI_CLOCK_CONTROL);  in sdhci_enable_clk()
1981 				       mmc_hostname(host->mmc));  in sdhci_enable_clk()
1982 				sdhci_dumpregs(host);  in sdhci_enable_clk()
1990 	sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL);  in sdhci_enable_clk()
1994 void sdhci_set_clock(struct sdhci_host *host, unsigned int clock)  in sdhci_set_clock()  argument
1998 	host->mmc->actual_clock = 0;  in sdhci_set_clock()
2000 	sdhci_writew(host, 0, SDHCI_CLOCK_CONTROL);  in sdhci_set_clock()
2005 	clk = sdhci_calc_clk(host, clock, &host->mmc->actual_clock);  in sdhci_set_clock()
2006 	sdhci_enable_clk(host, clk);  in sdhci_set_clock()
2010 static void sdhci_set_power_reg(struct sdhci_host *host, unsigned char mode,  in sdhci_set_power_reg()  argument
2013 	struct mmc_host *mmc = host->mmc;  in sdhci_set_power_reg()
2018 		sdhci_writeb(host, SDHCI_POWER_ON, SDHCI_POWER_CONTROL);  in sdhci_set_power_reg()
2020 		sdhci_writeb(host, 0, SDHCI_POWER_CONTROL);  in sdhci_set_power_reg()
2023 void sdhci_set_power_noreg(struct sdhci_host *host, unsigned char mode,  in sdhci_set_power_noreg()  argument
2056 			     mmc_hostname(host->mmc), vdd);  in sdhci_set_power_noreg()
2061 	if (host->pwr == pwr)  in sdhci_set_power_noreg()
2064 	host->pwr = pwr;  in sdhci_set_power_noreg()
2067 		sdhci_writeb(host, 0, SDHCI_POWER_CONTROL);  in sdhci_set_power_noreg()
2068 		if (host->quirks2 & SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON)  in sdhci_set_power_noreg()
2069 			sdhci_runtime_pm_bus_off(host);  in sdhci_set_power_noreg()
2075 		if (!(host->quirks & SDHCI_QUIRK_SINGLE_POWER_WRITE))  in sdhci_set_power_noreg()
2076 			sdhci_writeb(host, 0, SDHCI_POWER_CONTROL);  in sdhci_set_power_noreg()
2083 		if (host->quirks & SDHCI_QUIRK_NO_SIMULT_VDD_AND_POWER)  in sdhci_set_power_noreg()
2084 			sdhci_writeb(host, pwr, SDHCI_POWER_CONTROL);  in sdhci_set_power_noreg()
2088 		sdhci_writeb(host, pwr, SDHCI_POWER_CONTROL);  in sdhci_set_power_noreg()
2090 		if (host->quirks2 & SDHCI_QUIRK2_CARD_ON_NEEDS_BUS_ON)  in sdhci_set_power_noreg()
2091 			sdhci_runtime_pm_bus_on(host);  in sdhci_set_power_noreg()
2097 		if (host->quirks & SDHCI_QUIRK_DELAY_AFTER_POWER)  in sdhci_set_power_noreg()
2103 void sdhci_set_power(struct sdhci_host *host, unsigned char mode,  in sdhci_set_power()  argument
2106 	if (IS_ERR(host->mmc->supply.vmmc))  in sdhci_set_power()
2107 		sdhci_set_power_noreg(host, mode, vdd);  in sdhci_set_power()
2109 		sdhci_set_power_reg(host, mode, vdd);  in sdhci_set_power()
2119 void sdhci_set_power_and_bus_voltage(struct sdhci_host *host,  in sdhci_set_power_and_bus_voltage()  argument
2123 	if (!IS_ERR(host->mmc->supply.vmmc)) {  in sdhci_set_power_and_bus_voltage()
2124 		struct mmc_host *mmc = host->mmc;  in sdhci_set_power_and_bus_voltage()
2128 	sdhci_set_power_noreg(host, mode, vdd);  in sdhci_set_power_and_bus_voltage()
2140 	struct sdhci_host *host = mmc_priv(mmc);  in sdhci_request()  local
2148 	spin_lock_irqsave(&host->lock, flags);  in sdhci_request()
2150 	sdhci_led_activate(host);  in sdhci_request()
2152 	if (sdhci_present_error(host, mrq->cmd, present))  in sdhci_request()
2155 	cmd = sdhci_manual_cmd23(host, mrq) ? mrq->sbc : mrq->cmd;  in sdhci_request()
2157 	if (!sdhci_send_command_retry(host, cmd, flags))  in sdhci_request()
2160 	spin_unlock_irqrestore(&host->lock, flags);  in sdhci_request()
2165 	sdhci_finish_mrq(host, mrq);  in sdhci_request()
2166 	spin_unlock_irqrestore(&host->lock, flags);  in sdhci_request()
2172 	struct sdhci_host *host = mmc_priv(mmc);  in sdhci_request_atomic()  local
2177 	spin_lock_irqsave(&host->lock, flags);  in sdhci_request_atomic()
2179 	if (sdhci_present_error(host, mrq->cmd, true)) {  in sdhci_request_atomic()
2180 		sdhci_finish_mrq(host, mrq);  in sdhci_request_atomic()
2184 	cmd = sdhci_manual_cmd23(host, mrq) ? mrq->sbc : mrq->cmd;  in sdhci_request_atomic()
2193 	if (!sdhci_send_command(host, cmd))  in sdhci_request_atomic()
2196 		sdhci_led_activate(host);  in sdhci_request_atomic()
2199 	spin_unlock_irqrestore(&host->lock, flags);  in sdhci_request_atomic()
2204 void sdhci_set_bus_width(struct sdhci_host *host, int width)  in sdhci_set_bus_width()  argument
2208 	ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL);  in sdhci_set_bus_width()
2213 		if (host->mmc->caps & MMC_CAP_8_BIT_DATA)  in sdhci_set_bus_width()
2220 	sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL);  in sdhci_set_bus_width()
2224 void sdhci_set_uhs_signaling(struct sdhci_host *host, unsigned timing)  in sdhci_set_uhs_signaling()  argument
2228 	ctrl_2 = sdhci_readw(host, SDHCI_HOST_CONTROL2);  in sdhci_set_uhs_signaling()
2229 	/* Select Bus Speed Mode for host */  in sdhci_set_uhs_signaling()
2245 	sdhci_writew(host, ctrl_2, SDHCI_HOST_CONTROL2);  in sdhci_set_uhs_signaling()
2251 	struct sdhci_host *host = mmc_priv(mmc);  in sdhci_set_ios()  local
2257 	if (host->flags & SDHCI_DEVICE_DEAD) {  in sdhci_set_ios()
2269 		sdhci_writel(host, 0, SDHCI_SIGNAL_ENABLE);  in sdhci_set_ios()
2270 		sdhci_reinit(host);  in sdhci_set_ios()
2273 	if (host->version >= SDHCI_SPEC_300 &&  in sdhci_set_ios()
2275 		!(host->quirks2 & SDHCI_QUIRK2_PRESET_VALUE_BROKEN))  in sdhci_set_ios()
2276 		sdhci_enable_preset_value(host, false);  in sdhci_set_ios()
2278 	if (!ios->clock || ios->clock != host->clock) {  in sdhci_set_ios()
2279 		host->ops->set_clock(host, ios->clock);  in sdhci_set_ios()
2280 		host->clock = ios->clock;  in sdhci_set_ios()
2282 		if (host->quirks & SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK &&  in sdhci_set_ios()
2283 		    host->clock) {  in sdhci_set_ios()
2284 			host->timeout_clk = host->mmc->actual_clock ?  in sdhci_set_ios()
2285 						host->mmc->actual_clock / 1000 :  in sdhci_set_ios()
2286 						host->clock / 1000;  in sdhci_set_ios()
2287 			host->mmc->max_busy_timeout =  in sdhci_set_ios()
2288 				host->ops->get_max_timeout_count ?  in sdhci_set_ios()
2289 				host->ops->get_max_timeout_count(host) :  in sdhci_set_ios()
2291 			host->mmc->max_busy_timeout /= host->timeout_clk;  in sdhci_set_ios()
2295 	if (host->ops->set_power)  in sdhci_set_ios()
2296 		host->ops->set_power(host, ios->power_mode, ios->vdd);  in sdhci_set_ios()
2298 		sdhci_set_power(host, ios->power_mode, ios->vdd);  in sdhci_set_ios()
2300 	if (host->ops->platform_send_init_74_clocks)  in sdhci_set_ios()
2301 		host->ops->platform_send_init_74_clocks(host, ios->power_mode);  in sdhci_set_ios()
2303 	host->ops->set_bus_width(host, ios->bus_width);  in sdhci_set_ios()
2305 	ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL);  in sdhci_set_ios()
2307 	if (!(host->quirks & SDHCI_QUIRK_NO_HISPD_BIT)) {  in sdhci_set_ios()
2322 	if (host->version >= SDHCI_SPEC_300) {  in sdhci_set_ios()
2325 		if (!host->preset_enabled) {  in sdhci_set_ios()
2326 			sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL);  in sdhci_set_ios()
2331 			ctrl_2 = sdhci_readw(host, SDHCI_HOST_CONTROL2);  in sdhci_set_ios()
2347 			sdhci_writew(host, ctrl_2, SDHCI_HOST_CONTROL2);  in sdhci_set_ios()
2351 			 * Enable in the Host Control 2 register is set, we  in sdhci_set_ios()
2357 			clk = sdhci_readw(host, SDHCI_CLOCK_CONTROL);  in sdhci_set_ios()
2359 			sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL);  in sdhci_set_ios()
2361 			sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL);  in sdhci_set_ios()
2364 			host->ops->set_clock(host, host->clock);  in sdhci_set_ios()
2368 		clk = sdhci_readw(host, SDHCI_CLOCK_CONTROL);  in sdhci_set_ios()
2370 		sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL);  in sdhci_set_ios()
2372 		host->ops->set_uhs_signaling(host, ios->timing);  in sdhci_set_ios()
2373 		host->timing = ios->timing;  in sdhci_set_ios()
2375 		if (!(host->quirks2 & SDHCI_QUIRK2_PRESET_VALUE_BROKEN) &&  in sdhci_set_ios()
2384 			sdhci_enable_preset_value(host, true);  in sdhci_set_ios()
2385 			preset = sdhci_get_preset_value(host);  in sdhci_set_ios()
2391 		host->ops->set_clock(host, host->clock);  in sdhci_set_ios()
2393 		sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL);  in sdhci_set_ios()
2400 	if (host->quirks & SDHCI_QUIRK_RESET_CMD_DATA_ON_IOS)  in sdhci_set_ios()
2401 		sdhci_do_reset(host, SDHCI_RESET_CMD | SDHCI_RESET_DATA);  in sdhci_set_ios()
2407 	struct sdhci_host *host = mmc_priv(mmc);  in sdhci_get_cd()  local
2410 	if (host->flags & SDHCI_DEVICE_DEAD)  in sdhci_get_cd()
2414 	if (!mmc_card_is_removable(host->mmc))  in sdhci_get_cd()
2425 	if (host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION)  in sdhci_get_cd()
2428 	/* Host native card detect */  in sdhci_get_cd()
2429 	return !!(sdhci_readl(host, SDHCI_PRESENT_STATE) & SDHCI_CARD_PRESENT);  in sdhci_get_cd()
2432 static int sdhci_check_ro(struct sdhci_host *host)  in sdhci_check_ro()  argument
2437 	spin_lock_irqsave(&host->lock, flags);  in sdhci_check_ro()
2439 	if (host->flags & SDHCI_DEVICE_DEAD)  in sdhci_check_ro()
2441 	else if (host->ops->get_ro)  in sdhci_check_ro()
2442 		is_readonly = host->ops->get_ro(host);  in sdhci_check_ro()
2443 	else if (mmc_can_gpio_ro(host->mmc))  in sdhci_check_ro()
2444 		is_readonly = mmc_gpio_get_ro(host->mmc);  in sdhci_check_ro()
2446 		is_readonly = !(sdhci_readl(host, SDHCI_PRESENT_STATE)  in sdhci_check_ro()
2449 	spin_unlock_irqrestore(&host->lock, flags);  in sdhci_check_ro()
2452 	return host->quirks & SDHCI_QUIRK_INVERTED_WRITE_PROTECT ?  in sdhci_check_ro()
2460 	struct sdhci_host *host = mmc_priv(mmc);  in sdhci_get_ro()  local
2463 	if (!(host->quirks & SDHCI_QUIRK_UNSTABLE_RO_DETECT))  in sdhci_get_ro()
2464 		return sdhci_check_ro(host);  in sdhci_get_ro()
2468 		if (sdhci_check_ro(host)) {  in sdhci_get_ro()
2479 	struct sdhci_host *host = mmc_priv(mmc);  in sdhci_hw_reset()  local
2481 	if (host->ops && host->ops->hw_reset)  in sdhci_hw_reset()
2482 		host->ops->hw_reset(host);  in sdhci_hw_reset()
2485 static void sdhci_enable_sdio_irq_nolock(struct sdhci_host *host, int enable)  in sdhci_enable_sdio_irq_nolock()  argument
2487 	if (!(host->flags & SDHCI_DEVICE_DEAD)) {  in sdhci_enable_sdio_irq_nolock()
2489 			host->ier |= SDHCI_INT_CARD_INT;  in sdhci_enable_sdio_irq_nolock()
2491 			host->ier &= ~SDHCI_INT_CARD_INT;  in sdhci_enable_sdio_irq_nolock()
2493 		sdhci_writel(host, host->ier, SDHCI_INT_ENABLE);  in sdhci_enable_sdio_irq_nolock()
2494 		sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE);  in sdhci_enable_sdio_irq_nolock()
2500 	struct sdhci_host *host = mmc_priv(mmc);  in sdhci_enable_sdio_irq()  local
2504 		pm_runtime_get_noresume(host->mmc->parent);  in sdhci_enable_sdio_irq()
2506 	spin_lock_irqsave(&host->lock, flags);  in sdhci_enable_sdio_irq()
2507 	sdhci_enable_sdio_irq_nolock(host, enable);  in sdhci_enable_sdio_irq()
2508 	spin_unlock_irqrestore(&host->lock, flags);  in sdhci_enable_sdio_irq()
2511 		pm_runtime_put_noidle(host->mmc->parent);  in sdhci_enable_sdio_irq()
2517 	struct sdhci_host *host = mmc_priv(mmc);  in sdhci_ack_sdio_irq()  local
2520 	spin_lock_irqsave(&host->lock, flags);  in sdhci_ack_sdio_irq()
2521 	sdhci_enable_sdio_irq_nolock(host, true);  in sdhci_ack_sdio_irq()
2522 	spin_unlock_irqrestore(&host->lock, flags);  in sdhci_ack_sdio_irq()
2528 	struct sdhci_host *host = mmc_priv(mmc);  in sdhci_start_signal_voltage_switch()  local
2533 	 * Signal Voltage Switching is only applicable for Host Controllers  in sdhci_start_signal_voltage_switch()
2536 	if (host->version < SDHCI_SPEC_300)  in sdhci_start_signal_voltage_switch()
2539 	ctrl = sdhci_readw(host, SDHCI_HOST_CONTROL2);  in sdhci_start_signal_voltage_switch()
2543 		if (!(host->flags & SDHCI_SIGNALING_330))  in sdhci_start_signal_voltage_switch()
2545 		/* Set 1.8V Signal Enable in the Host Control2 register to 0 */  in sdhci_start_signal_voltage_switch()
2547 		sdhci_writew(host, ctrl, SDHCI_HOST_CONTROL2);  in sdhci_start_signal_voltage_switch()
2561 		ctrl = sdhci_readw(host, SDHCI_HOST_CONTROL2);  in sdhci_start_signal_voltage_switch()
2570 		if (!(host->flags & SDHCI_SIGNALING_180))  in sdhci_start_signal_voltage_switch()
2582 		 * Enable 1.8V Signal Enable in the Host Control2  in sdhci_start_signal_voltage_switch()
2586 		sdhci_writew(host, ctrl, SDHCI_HOST_CONTROL2);  in sdhci_start_signal_voltage_switch()
2589 		if (host->ops->voltage_switch)  in sdhci_start_signal_voltage_switch()
2590 			host->ops->voltage_switch(host);  in sdhci_start_signal_voltage_switch()
2593 		ctrl = sdhci_readw(host, SDHCI_HOST_CONTROL2);  in sdhci_start_signal_voltage_switch()
2602 		if (!(host->flags & SDHCI_SIGNALING_120))  in sdhci_start_signal_voltage_switch()
2622 	struct sdhci_host *host = mmc_priv(mmc);  in sdhci_card_busy()  local
2626 	present_state = sdhci_readl(host, SDHCI_PRESENT_STATE);  in sdhci_card_busy()
2633 	struct sdhci_host *host = mmc_priv(mmc);  in sdhci_prepare_hs400_tuning()  local
2636 	spin_lock_irqsave(&host->lock, flags);  in sdhci_prepare_hs400_tuning()
2637 	host->flags |= SDHCI_HS400_TUNING;  in sdhci_prepare_hs400_tuning()
2638 	spin_unlock_irqrestore(&host->lock, flags);  in sdhci_prepare_hs400_tuning()
2643 void sdhci_start_tuning(struct sdhci_host *host)  in sdhci_start_tuning()  argument
2647 	ctrl = sdhci_readw(host, SDHCI_HOST_CONTROL2);  in sdhci_start_tuning()
2649 	if (host->quirks2 & SDHCI_QUIRK2_TUNING_WORK_AROUND)  in sdhci_start_tuning()
2651 	sdhci_writew(host, ctrl, SDHCI_HOST_CONTROL2);  in sdhci_start_tuning()
2654 	 * As per the Host Controller spec v3.00, tuning command  in sdhci_start_tuning()
2663 	sdhci_writel(host, SDHCI_INT_DATA_AVAIL, SDHCI_INT_ENABLE);  in sdhci_start_tuning()
2664 	sdhci_writel(host, SDHCI_INT_DATA_AVAIL, SDHCI_SIGNAL_ENABLE);  in sdhci_start_tuning()
2668 void sdhci_end_tuning(struct sdhci_host *host)  in sdhci_end_tuning()  argument
2670 	sdhci_writel(host, host->ier, SDHCI_INT_ENABLE);  in sdhci_end_tuning()
2671 	sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE);  in sdhci_end_tuning()
2675 void sdhci_reset_tuning(struct sdhci_host *host)  in sdhci_reset_tuning()  argument
2679 	ctrl = sdhci_readw(host, SDHCI_HOST_CONTROL2);  in sdhci_reset_tuning()
2682 	sdhci_writew(host, ctrl, SDHCI_HOST_CONTROL2);  in sdhci_reset_tuning()
2686 void sdhci_abort_tuning(struct sdhci_host *host, u32 opcode)  in sdhci_abort_tuning()  argument
2688 	sdhci_reset_tuning(host);  in sdhci_abort_tuning()
2690 	sdhci_do_reset(host, SDHCI_RESET_CMD);  in sdhci_abort_tuning()
2691 	sdhci_do_reset(host, SDHCI_RESET_DATA);  in sdhci_abort_tuning()
2693 	sdhci_end_tuning(host);  in sdhci_abort_tuning()
2695 	mmc_abort_tuning(host->mmc, opcode);  in sdhci_abort_tuning()
2706 void sdhci_send_tuning(struct sdhci_host *host, u32 opcode)  in sdhci_send_tuning()  argument
2708 	struct mmc_host *mmc = host->mmc;  in sdhci_send_tuning()
2712 	u32 b = host->sdma_boundary;  in sdhci_send_tuning()
2714 	spin_lock_irqsave(&host->lock, flags);  in sdhci_send_tuning()
2723 	 * block to the Host Controller. So we set the block size  in sdhci_send_tuning()
2728 		sdhci_writew(host, SDHCI_MAKE_BLKSZ(b, 128), SDHCI_BLOCK_SIZE);  in sdhci_send_tuning()
2730 		sdhci_writew(host, SDHCI_MAKE_BLKSZ(b, 64), SDHCI_BLOCK_SIZE);  in sdhci_send_tuning()
2733 	 * The tuning block is sent by the card to the host controller.  in sdhci_send_tuning()
2738 	sdhci_writew(host, SDHCI_TRNS_READ, SDHCI_TRANSFER_MODE);  in sdhci_send_tuning()
2740 	if (!sdhci_send_command_retry(host, &cmd, flags)) {  in sdhci_send_tuning()
2741 		spin_unlock_irqrestore(&host->lock, flags);  in sdhci_send_tuning()
2742 		host->tuning_done = 0;  in sdhci_send_tuning()
2746 	host->cmd = NULL;  in sdhci_send_tuning()
2748 	sdhci_del_timer(host, &mrq);  in sdhci_send_tuning()
2750 	host->tuning_done = 0;  in sdhci_send_tuning()
2752 	spin_unlock_irqrestore(&host->lock, flags);  in sdhci_send_tuning()
2755 	wait_event_timeout(host->buf_ready_int, (host->tuning_done == 1),  in sdhci_send_tuning()
2761 static int __sdhci_execute_tuning(struct sdhci_host *host, u32 opcode)  in __sdhci_execute_tuning()  argument
2769 	for (i = 0; i < host->tuning_loop_count; i++) {  in __sdhci_execute_tuning()
2772 		sdhci_send_tuning(host, opcode);  in __sdhci_execute_tuning()
2774 		if (!host->tuning_done) {  in __sdhci_execute_tuning()
2776 				 mmc_hostname(host->mmc));  in __sdhci_execute_tuning()
2777 			sdhci_abort_tuning(host, opcode);  in __sdhci_execute_tuning()
2782 		if (host->tuning_delay > 0)  in __sdhci_execute_tuning()
2783 			mdelay(host->tuning_delay);  in __sdhci_execute_tuning()
2785 		ctrl = sdhci_readw(host, SDHCI_HOST_CONTROL2);  in __sdhci_execute_tuning()
2795 		mmc_hostname(host->mmc));  in __sdhci_execute_tuning()
2796 	sdhci_reset_tuning(host);  in __sdhci_execute_tuning()
2802 	struct sdhci_host *host = mmc_priv(mmc);  in sdhci_execute_tuning()  local
2807 	hs400_tuning = host->flags & SDHCI_HS400_TUNING;  in sdhci_execute_tuning()
2809 	if (host->tuning_mode == SDHCI_TUNING_MODE_1)  in sdhci_execute_tuning()
2810 		tuning_count = host->tuning_count;  in sdhci_execute_tuning()
2813 	 * The Host Controller needs tuning in case of SDR104 and DDR50  in sdhci_execute_tuning()
2816 	 * If the Host Controller supports the HS200 mode then the  in sdhci_execute_tuning()
2819 	switch (host->timing) {  in sdhci_execute_tuning()
2839 		if (host->flags & SDHCI_SDR50_NEEDS_TUNING)  in sdhci_execute_tuning()
2847 	if (host->ops->platform_execute_tuning) {  in sdhci_execute_tuning()
2848 		err = host->ops->platform_execute_tuning(host, opcode);  in sdhci_execute_tuning()
2852 	host->mmc->retune_period = tuning_count;  in sdhci_execute_tuning()
2854 	if (host->tuning_delay < 0)  in sdhci_execute_tuning()
2855 		host->tuning_delay = opcode == MMC_SEND_TUNING_BLOCK;  in sdhci_execute_tuning()
2857 	sdhci_start_tuning(host);  in sdhci_execute_tuning()
2859 	host->tuning_err = __sdhci_execute_tuning(host, opcode);  in sdhci_execute_tuning()
2861 	sdhci_end_tuning(host);  in sdhci_execute_tuning()
2863 	host->flags &= ~SDHCI_HS400_TUNING;  in sdhci_execute_tuning()
2869 static void sdhci_enable_preset_value(struct sdhci_host *host, bool enable)  in sdhci_enable_preset_value()  argument
2871 	/* Host Controller v3.00 defines preset value registers */  in sdhci_enable_preset_value()
2872 	if (host->version < SDHCI_SPEC_300)  in sdhci_enable_preset_value()
2879 	if (host->preset_enabled != enable) {  in sdhci_enable_preset_value()
2880 		u16 ctrl = sdhci_readw(host, SDHCI_HOST_CONTROL2);  in sdhci_enable_preset_value()
2887 		sdhci_writew(host, ctrl, SDHCI_HOST_CONTROL2);  in sdhci_enable_preset_value()
2890 			host->flags |= SDHCI_PV_ENABLED;  in sdhci_enable_preset_value()
2892 			host->flags &= ~SDHCI_PV_ENABLED;  in sdhci_enable_preset_value()
2894 		host->preset_enabled = enable;  in sdhci_enable_preset_value()
2901 	struct sdhci_host *host = mmc_priv(mmc);  in sdhci_post_req()  local
2905 		dma_unmap_sg(mmc_dev(host->mmc), data->sg, data->sg_len,  in sdhci_post_req()
2913 	struct sdhci_host *host = mmc_priv(mmc);  in sdhci_pre_req()  local
2922 	if (host->flags & SDHCI_REQ_USE_DMA && !host->bounce_buffer)  in sdhci_pre_req()
2923 		sdhci_pre_dma_transfer(host, mrq->data, COOKIE_PRE_MAPPED);  in sdhci_pre_req()
2926 static void sdhci_error_out_mrqs(struct sdhci_host *host, int err)  in sdhci_error_out_mrqs()  argument
2928 	if (host->data_cmd) {  in sdhci_error_out_mrqs()
2929 		host->data_cmd->error = err;  in sdhci_error_out_mrqs()
2930 		sdhci_finish_mrq(host, host->data_cmd->mrq);  in sdhci_error_out_mrqs()
2933 	if (host->cmd) {  in sdhci_error_out_mrqs()
2934 		host->cmd->error = err;  in sdhci_error_out_mrqs()
2935 		sdhci_finish_mrq(host, host->cmd->mrq);  in sdhci_error_out_mrqs()
2941 	struct sdhci_host *host = mmc_priv(mmc);  in sdhci_card_event()  local
2946 	if (host->ops->card_event)  in sdhci_card_event()
2947 		host->ops->card_event(host);  in sdhci_card_event()
2951 	spin_lock_irqsave(&host->lock, flags);  in sdhci_card_event()
2954 	if (sdhci_has_requests(host) && !present) {  in sdhci_card_event()
2956 			mmc_hostname(host->mmc));  in sdhci_card_event()
2958 			mmc_hostname(host->mmc));  in sdhci_card_event()
2960 		sdhci_do_reset(host, SDHCI_RESET_CMD);  in sdhci_card_event()
2961 		sdhci_do_reset(host, SDHCI_RESET_DATA);  in sdhci_card_event()
2963 		sdhci_error_out_mrqs(host, -ENOMEDIUM);  in sdhci_card_event()
2966 	spin_unlock_irqrestore(&host->lock, flags);  in sdhci_card_event()
2992 static bool sdhci_request_done(struct sdhci_host *host)  in sdhci_request_done()  argument
2998 	spin_lock_irqsave(&host->lock, flags);  in sdhci_request_done()
3001 		mrq = host->mrqs_done[i];  in sdhci_request_done()
3007 		spin_unlock_irqrestore(&host->lock, flags);  in sdhci_request_done()
3015 	if (sdhci_needs_reset(host, mrq)) {  in sdhci_request_done()
3019 		 * also be in mrqs_done, otherwise host->cmd and host->data_cmd  in sdhci_request_done()
3022 		if (host->cmd || host->data_cmd) {  in sdhci_request_done()
3023 			spin_unlock_irqrestore(&host->lock, flags);  in sdhci_request_done()
3028 		if (host->quirks & SDHCI_QUIRK_CLOCK_BEFORE_RESET)  in sdhci_request_done()
3030 			host->ops->set_clock(host, host->clock);  in sdhci_request_done()
3036 		sdhci_do_reset(host, SDHCI_RESET_CMD);  in sdhci_request_done()
3037 		sdhci_do_reset(host, SDHCI_RESET_DATA);  in sdhci_request_done()
3039 		host->pending_reset = false;  in sdhci_request_done()
3047 	if (host->flags & SDHCI_REQ_USE_DMA) {  in sdhci_request_done()
3050 		if (host->use_external_dma && data &&  in sdhci_request_done()
3052 			struct dma_chan *chan = sdhci_external_dma_channel(host, data);  in sdhci_request_done()
3054 			host->mrqs_done[i] = NULL;  in sdhci_request_done()
3055 			spin_unlock_irqrestore(&host->lock, flags);  in sdhci_request_done()
3057 			spin_lock_irqsave(&host->lock, flags);  in sdhci_request_done()
3058 			sdhci_set_mrq_done(host, mrq);  in sdhci_request_done()
3062 			if (host->bounce_buffer) {  in sdhci_request_done()
3070 					if (length > host->bounce_buffer_size) {  in sdhci_request_done()
3072 						       mmc_hostname(host->mmc),  in sdhci_request_done()
3073 						       host->bounce_buffer_size,  in sdhci_request_done()
3076 						length = host->bounce_buffer_size;  in sdhci_request_done()
3079 						host->mmc->parent,  in sdhci_request_done()
3080 						host->bounce_addr,  in sdhci_request_done()
3081 						host->bounce_buffer_size,  in sdhci_request_done()
3085 						host->bounce_buffer,  in sdhci_request_done()
3090 						host->mmc->parent,  in sdhci_request_done()
3091 						host->bounce_addr,  in sdhci_request_done()
3092 						host->bounce_buffer_size,  in sdhci_request_done()
3097 				dma_unmap_sg(mmc_dev(host->mmc), data->sg,  in sdhci_request_done()
3105 	host->mrqs_done[i] = NULL;  in sdhci_request_done()
3107 	spin_unlock_irqrestore(&host->lock, flags);  in sdhci_request_done()
3109 	if (host->ops->request_done)  in sdhci_request_done()
3110 		host->ops->request_done(host, mrq);  in sdhci_request_done()
3112 		mmc_request_done(host->mmc, mrq);  in sdhci_request_done()
3119 	struct sdhci_host *host = container_of(work, struct sdhci_host,  in sdhci_complete_work()  local
3122 	while (!sdhci_request_done(host))  in sdhci_complete_work()
3128 	struct sdhci_host *host;  in sdhci_timeout_timer()  local
3131 	host = from_timer(host, t, timer);  in sdhci_timeout_timer()
3133 	spin_lock_irqsave(&host->lock, flags);  in sdhci_timeout_timer()
3135 	if (host->cmd && !sdhci_data_line_cmd(host->cmd)) {  in sdhci_timeout_timer()
3137 		       mmc_hostname(host->mmc));  in sdhci_timeout_timer()
3138 		sdhci_dumpregs(host);  in sdhci_timeout_timer()
3140 		host->cmd->error = -ETIMEDOUT;  in sdhci_timeout_timer()
3141 		sdhci_finish_mrq(host, host->cmd->mrq);  in sdhci_timeout_timer()
3144 	spin_unlock_irqrestore(&host->lock, flags);  in sdhci_timeout_timer()
3149 	struct sdhci_host *host;  in sdhci_timeout_data_timer()  local
3152 	host = from_timer(host, t, data_timer);  in sdhci_timeout_data_timer()
3154 	spin_lock_irqsave(&host->lock, flags);  in sdhci_timeout_data_timer()
3156 	if (host->data || host->data_cmd ||  in sdhci_timeout_data_timer()
3157 	    (host->cmd && sdhci_data_line_cmd(host->cmd))) {  in sdhci_timeout_data_timer()
3159 		       mmc_hostname(host->mmc));  in sdhci_timeout_data_timer()
3160 		sdhci_dumpregs(host);  in sdhci_timeout_data_timer()
3162 		if (host->data) {  in sdhci_timeout_data_timer()
3163 			host->data->error = -ETIMEDOUT;  in sdhci_timeout_data_timer()
3164 			__sdhci_finish_data(host, true);  in sdhci_timeout_data_timer()
3165 			queue_work(host->complete_wq, &host->complete_work);  in sdhci_timeout_data_timer()
3166 		} else if (host->data_cmd) {  in sdhci_timeout_data_timer()
3167 			host->data_cmd->error = -ETIMEDOUT;  in sdhci_timeout_data_timer()
3168 			sdhci_finish_mrq(host, host->data_cmd->mrq);  in sdhci_timeout_data_timer()
3170 			host->cmd->error = -ETIMEDOUT;  in sdhci_timeout_data_timer()
3171 			sdhci_finish_mrq(host, host->cmd->mrq);  in sdhci_timeout_data_timer()
3175 	spin_unlock_irqrestore(&host->lock, flags);  in sdhci_timeout_data_timer()
3184 static void sdhci_cmd_irq(struct sdhci_host *host, u32 intmask, u32 *intmask_p)  in sdhci_cmd_irq()  argument
3187 	if (intmask & SDHCI_INT_AUTO_CMD_ERR && host->data_cmd) {  in sdhci_cmd_irq()
3188 		struct mmc_request *mrq = host->data_cmd->mrq;  in sdhci_cmd_irq()
3189 		u16 auto_cmd_status = sdhci_readw(host, SDHCI_AUTO_CMD_STATUS);  in sdhci_cmd_irq()
3195 		if (!mrq->sbc && (host->flags & SDHCI_AUTO_CMD12)) {  in sdhci_cmd_irq()
3201 	if (!host->cmd) {  in sdhci_cmd_irq()
3207 		if (host->pending_reset)  in sdhci_cmd_irq()
3210 		       mmc_hostname(host->mmc), (unsigned)intmask);  in sdhci_cmd_irq()
3211 		sdhci_dumpregs(host);  in sdhci_cmd_irq()
3218 			host->cmd->error = -ETIMEDOUT;  in sdhci_cmd_irq()
3220 			host->cmd->error = -EILSEQ;  in sdhci_cmd_irq()
3223 		if (host->cmd->data &&  in sdhci_cmd_irq()
3226 			host->cmd = NULL;  in sdhci_cmd_irq()
3231 		__sdhci_finish_mrq(host, host->cmd->mrq);  in sdhci_cmd_irq()
3237 		struct mmc_request *mrq = host->cmd->mrq;  in sdhci_cmd_irq()
3238 		u16 auto_cmd_status = sdhci_readw(host, SDHCI_AUTO_CMD_STATUS);  in sdhci_cmd_irq()
3243 		if (mrq->sbc && (host->flags & SDHCI_AUTO_CMD23)) {  in sdhci_cmd_irq()
3245 			__sdhci_finish_mrq(host, mrq);  in sdhci_cmd_irq()
3251 		sdhci_finish_command(host);  in sdhci_cmd_irq()
3254 static void sdhci_adma_show_error(struct sdhci_host *host)  in sdhci_adma_show_error()  argument
3256 	void *desc = host->adma_table;  in sdhci_adma_show_error()
3257 	dma_addr_t dma = host->adma_addr;  in sdhci_adma_show_error()
3259 	sdhci_dumpregs(host);  in sdhci_adma_show_error()
3264 		if (host->flags & SDHCI_USE_64_BIT_DMA)  in sdhci_adma_show_error()
3278 		desc += host->desc_sz;  in sdhci_adma_show_error()
3279 		dma += host->desc_sz;  in sdhci_adma_show_error()
3286 static void sdhci_data_irq(struct sdhci_host *host, u32 intmask)  in sdhci_data_irq()  argument
3292 		command = SDHCI_GET_CMD(sdhci_readw(host, SDHCI_COMMAND));  in sdhci_data_irq()
3295 			host->tuning_done = 1;  in sdhci_data_irq()
3296 			wake_up(&host->buf_ready_int);  in sdhci_data_irq()
3301 	if (!host->data) {  in sdhci_data_irq()
3302 		struct mmc_command *data_cmd = host->data_cmd;  in sdhci_data_irq()
3311 				host->data_cmd = NULL;  in sdhci_data_irq()
3313 				__sdhci_finish_mrq(host, data_cmd->mrq);  in sdhci_data_irq()
3317 				host->data_cmd = NULL;  in sdhci_data_irq()
3323 				if (host->cmd == data_cmd)  in sdhci_data_irq()
3326 				__sdhci_finish_mrq(host, data_cmd->mrq);  in sdhci_data_irq()
3336 		if (host->pending_reset)  in sdhci_data_irq()
3340 		       mmc_hostname(host->mmc), (unsigned)intmask);  in sdhci_data_irq()
3341 		sdhci_dumpregs(host);  in sdhci_data_irq()
3347 		host->data->error = -ETIMEDOUT;  in sdhci_data_irq()
3349 		host->data->error = -EILSEQ;  in sdhci_data_irq()
3351 		SDHCI_GET_CMD(sdhci_readw(host, SDHCI_COMMAND))  in sdhci_data_irq()
3353 		host->data->error = -EILSEQ;  in sdhci_data_irq()
3355 		pr_err("%s: ADMA error: 0x%08x\n", mmc_hostname(host->mmc),  in sdhci_data_irq()
3357 		sdhci_adma_show_error(host);  in sdhci_data_irq()
3358 		host->data->error = -EIO;  in sdhci_data_irq()
3359 		if (host->ops->adma_workaround)  in sdhci_data_irq()
3360 			host->ops->adma_workaround(host, intmask);  in sdhci_data_irq()
3363 	if (host->data->error)  in sdhci_data_irq()
3364 		sdhci_finish_data(host);  in sdhci_data_irq()
3367 			sdhci_transfer_pio(host);  in sdhci_data_irq()
3374 		 * According to the spec sdhci_readl(host, SDHCI_DMA_ADDRESS)  in sdhci_data_irq()
3381 			dmastart = sdhci_sdma_address(host);  in sdhci_data_irq()
3382 			dmanow = dmastart + host->data->bytes_xfered;  in sdhci_data_irq()
3389 			host->data->bytes_xfered = dmanow - dmastart;  in sdhci_data_irq()
3391 			    &dmastart, host->data->bytes_xfered, &dmanow);  in sdhci_data_irq()
3392 			sdhci_set_sdma_addr(host, dmanow);  in sdhci_data_irq()
3396 			if (host->cmd == host->data_cmd) {  in sdhci_data_irq()
3402 				host->data_early = 1;  in sdhci_data_irq()
3404 				sdhci_finish_data(host);  in sdhci_data_irq()
3410 static inline bool sdhci_defer_done(struct sdhci_host *host,  in sdhci_defer_done()  argument
3415 	return host->pending_reset || host->always_defer_done ||  in sdhci_defer_done()
3416 	       ((host->flags & SDHCI_REQ_USE_DMA) && data &&  in sdhci_defer_done()
3424 	struct sdhci_host *host = dev_id;  in sdhci_irq()  local
3429 	spin_lock(&host->lock);  in sdhci_irq()
3431 	if (host->runtime_suspended) {  in sdhci_irq()
3432 		spin_unlock(&host->lock);  in sdhci_irq()
3436 	intmask = sdhci_readl(host, SDHCI_INT_STATUS);  in sdhci_irq()
3445 		if (host->ops->irq) {  in sdhci_irq()
3446 			intmask = host->ops->irq(host, intmask);  in sdhci_irq()
3454 		sdhci_writel(host, mask, SDHCI_INT_STATUS);  in sdhci_irq()
3457 			u32 present = sdhci_readl(host, SDHCI_PRESENT_STATE) &  in sdhci_irq()
3471 			host->ier &= ~(SDHCI_INT_CARD_INSERT |  in sdhci_irq()
3473 			host->ier |= present ? SDHCI_INT_CARD_REMOVE :  in sdhci_irq()
3475 			sdhci_writel(host, host->ier, SDHCI_INT_ENABLE);  in sdhci_irq()
3476 			sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE);  in sdhci_irq()
3478 			sdhci_writel(host, intmask & (SDHCI_INT_CARD_INSERT |  in sdhci_irq()
3481 			host->thread_isr |= intmask & (SDHCI_INT_CARD_INSERT |  in sdhci_irq()
3487 			sdhci_cmd_irq(host, intmask & SDHCI_INT_CMD_MASK, &intmask);  in sdhci_irq()
3490 			sdhci_data_irq(host, intmask & SDHCI_INT_DATA_MASK);  in sdhci_irq()
3494 				mmc_hostname(host->mmc));  in sdhci_irq()
3497 			mmc_retune_needed(host->mmc);  in sdhci_irq()
3500 		    (host->ier & SDHCI_INT_CARD_INT)) {  in sdhci_irq()
3501 			sdhci_enable_sdio_irq_nolock(host, false);  in sdhci_irq()
3502 			sdio_signal_irq(host->mmc);  in sdhci_irq()
3512 			sdhci_writel(host, intmask, SDHCI_INT_STATUS);  in sdhci_irq()
3518 		intmask = sdhci_readl(host, SDHCI_INT_STATUS);  in sdhci_irq()
3523 		struct mmc_request *mrq = host->mrqs_done[i];  in sdhci_irq()
3528 		if (sdhci_defer_done(host, mrq)) {  in sdhci_irq()
3532 			host->mrqs_done[i] = NULL;  in sdhci_irq()
3536 	if (host->deferred_cmd)  in sdhci_irq()
3539 	spin_unlock(&host->lock);  in sdhci_irq()
3546 		if (host->ops->request_done)  in sdhci_irq()
3547 			host->ops->request_done(host, mrqs_done[i]);  in sdhci_irq()
3549 			mmc_request_done(host->mmc, mrqs_done[i]);  in sdhci_irq()
3554 			   mmc_hostname(host->mmc), unexpected);  in sdhci_irq()
3555 		sdhci_dumpregs(host);  in sdhci_irq()
3563 	struct sdhci_host *host = dev_id;  in sdhci_thread_irq()  local
3568 	while (!sdhci_request_done(host))  in sdhci_thread_irq()
3571 	spin_lock_irqsave(&host->lock, flags);  in sdhci_thread_irq()
3573 	isr = host->thread_isr;  in sdhci_thread_irq()
3574 	host->thread_isr = 0;  in sdhci_thread_irq()
3576 	cmd = host->deferred_cmd;  in sdhci_thread_irq()
3577 	if (cmd && !sdhci_send_command_retry(host, cmd, flags))  in sdhci_thread_irq()
3578 		sdhci_finish_mrq(host, cmd->mrq);  in sdhci_thread_irq()
3580 	spin_unlock_irqrestore(&host->lock, flags);  in sdhci_thread_irq()
3583 		struct mmc_host *mmc = host->mmc;  in sdhci_thread_irq()
3600 static bool sdhci_cd_irq_can_wakeup(struct sdhci_host *host)  in sdhci_cd_irq_can_wakeup()  argument
3602 	return mmc_card_is_removable(host->mmc) &&  in sdhci_cd_irq_can_wakeup()
3603 	       !(host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION) &&  in sdhci_cd_irq_can_wakeup()
3604 	       !mmc_can_gpio_cd(host->mmc);  in sdhci_cd_irq_can_wakeup()
3610  * Table' in the SD Host Controller Standard Specification.
3615 static bool sdhci_enable_irq_wakeups(struct sdhci_host *host)  in sdhci_enable_irq_wakeups()  argument
3623 	if (sdhci_cd_irq_can_wakeup(host)) {  in sdhci_enable_irq_wakeups()
3628 	if (mmc_card_wake_sdio_irq(host->mmc)) {  in sdhci_enable_irq_wakeups()
3636 	val = sdhci_readb(host, SDHCI_WAKE_UP_CONTROL);  in sdhci_enable_irq_wakeups()
3639 	sdhci_writeb(host, val, SDHCI_WAKE_UP_CONTROL);  in sdhci_enable_irq_wakeups()
3641 	sdhci_writel(host, irq_val, SDHCI_INT_ENABLE);  in sdhci_enable_irq_wakeups()
3643 	host->irq_wake_enabled = !enable_irq_wake(host->irq);  in sdhci_enable_irq_wakeups()
3645 	return host->irq_wake_enabled;  in sdhci_enable_irq_wakeups()
3648 static void sdhci_disable_irq_wakeups(struct sdhci_host *host)  in sdhci_disable_irq_wakeups()  argument
3654 	val = sdhci_readb(host, SDHCI_WAKE_UP_CONTROL);  in sdhci_disable_irq_wakeups()
3656 	sdhci_writeb(host, val, SDHCI_WAKE_UP_CONTROL);  in sdhci_disable_irq_wakeups()
3658 	disable_irq_wake(host->irq);  in sdhci_disable_irq_wakeups()
3660 	host->irq_wake_enabled = false;  in sdhci_disable_irq_wakeups()
3663 int sdhci_suspend_host(struct sdhci_host *host)  in sdhci_suspend_host()  argument
3665 	sdhci_disable_card_detection(host);  in sdhci_suspend_host()
3667 	mmc_retune_timer_stop(host->mmc);  in sdhci_suspend_host()
3669 	if (!device_may_wakeup(mmc_dev(host->mmc)) ||  in sdhci_suspend_host()
3670 	    !sdhci_enable_irq_wakeups(host)) {  in sdhci_suspend_host()
3671 		host->ier = 0;  in sdhci_suspend_host()
3672 		sdhci_writel(host, 0, SDHCI_INT_ENABLE);  in sdhci_suspend_host()
3673 		sdhci_writel(host, 0, SDHCI_SIGNAL_ENABLE);  in sdhci_suspend_host()
3674 		free_irq(host->irq, host);  in sdhci_suspend_host()
3682 int sdhci_resume_host(struct sdhci_host *host)  in sdhci_resume_host()  argument
3684 	struct mmc_host *mmc = host->mmc;  in sdhci_resume_host()
3687 	if (host->flags & (SDHCI_USE_SDMA | SDHCI_USE_ADMA)) {  in sdhci_resume_host()
3688 		if (host->ops->enable_dma)  in sdhci_resume_host()
3689 			host->ops->enable_dma(host);  in sdhci_resume_host()
3692 	if ((host->mmc->pm_flags & MMC_PM_KEEP_POWER) &&  in sdhci_resume_host()
3693 	    (host->quirks2 & SDHCI_QUIRK2_HOST_OFF_CARD_ON)) {  in sdhci_resume_host()
3694 		/* Card keeps power but host controller does not */  in sdhci_resume_host()
3695 		sdhci_init(host, 0);  in sdhci_resume_host()
3696 		host->pwr = 0;  in sdhci_resume_host()
3697 		host->clock = 0;  in sdhci_resume_host()
3700 		sdhci_init(host, (host->mmc->pm_flags & MMC_PM_KEEP_POWER));  in sdhci_resume_host()
3703 	if (host->irq_wake_enabled) {  in sdhci_resume_host()
3704 		sdhci_disable_irq_wakeups(host);  in sdhci_resume_host()
3706 		ret = request_threaded_irq(host->irq, sdhci_irq,  in sdhci_resume_host()
3708 					   mmc_hostname(host->mmc), host);  in sdhci_resume_host()
3713 	sdhci_enable_card_detection(host);  in sdhci_resume_host()
3720 int sdhci_runtime_suspend_host(struct sdhci_host *host)  in sdhci_runtime_suspend_host()  argument
3724 	mmc_retune_timer_stop(host->mmc);  in sdhci_runtime_suspend_host()
3726 	spin_lock_irqsave(&host->lock, flags);  in sdhci_runtime_suspend_host()
3727 	host->ier &= SDHCI_INT_CARD_INT;  in sdhci_runtime_suspend_host()
3728 	sdhci_writel(host, host->ier, SDHCI_INT_ENABLE);  in sdhci_runtime_suspend_host()
3729 	sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE);  in sdhci_runtime_suspend_host()
3730 	spin_unlock_irqrestore(&host->lock, flags);  in sdhci_runtime_suspend_host()
3732 	synchronize_hardirq(host->irq);  in sdhci_runtime_suspend_host()
3734 	spin_lock_irqsave(&host->lock, flags);  in sdhci_runtime_suspend_host()
3735 	host->runtime_suspended = true;  in sdhci_runtime_suspend_host()
3736 	spin_unlock_irqrestore(&host->lock, flags);  in sdhci_runtime_suspend_host()
3742 int sdhci_runtime_resume_host(struct sdhci_host *host, int soft_reset)  in sdhci_runtime_resume_host()  argument
3744 	struct mmc_host *mmc = host->mmc;  in sdhci_runtime_resume_host()
3746 	int host_flags = host->flags;  in sdhci_runtime_resume_host()
3749 		if (host->ops->enable_dma)  in sdhci_runtime_resume_host()
3750 			host->ops->enable_dma(host);  in sdhci_runtime_resume_host()
3753 	sdhci_init(host, soft_reset);  in sdhci_runtime_resume_host()
3758 		host->pwr = 0;  in sdhci_runtime_resume_host()
3759 		host->clock = 0;  in sdhci_runtime_resume_host()
3764 		    !(host->quirks2 & SDHCI_QUIRK2_PRESET_VALUE_BROKEN)) {  in sdhci_runtime_resume_host()
3765 			spin_lock_irqsave(&host->lock, flags);  in sdhci_runtime_resume_host()
3766 			sdhci_enable_preset_value(host, true);  in sdhci_runtime_resume_host()
3767 			spin_unlock_irqrestore(&host->lock, flags);  in sdhci_runtime_resume_host()
3775 	spin_lock_irqsave(&host->lock, flags);  in sdhci_runtime_resume_host()
3777 	host->runtime_suspended = false;  in sdhci_runtime_resume_host()
3781 		sdhci_enable_sdio_irq_nolock(host, true);  in sdhci_runtime_resume_host()
3784 	sdhci_enable_card_detection(host);  in sdhci_runtime_resume_host()
3786 	spin_unlock_irqrestore(&host->lock, flags);  in sdhci_runtime_resume_host()
3802 	struct sdhci_host *host = mmc_priv(mmc);  in sdhci_cqe_enable()  local
3806 	spin_lock_irqsave(&host->lock, flags);  in sdhci_cqe_enable()
3808 	ctrl = sdhci_readb(host, SDHCI_HOST_CONTROL);  in sdhci_cqe_enable()
3811 	 * Host from V4.10 supports ADMA3 DMA type.  in sdhci_cqe_enable()
3815 	if (host->v4_mode && (host->caps1 & SDHCI_CAN_DO_ADMA3))  in sdhci_cqe_enable()
3817 	else if (host->flags & SDHCI_USE_64_BIT_DMA)  in sdhci_cqe_enable()
3821 	sdhci_writeb(host, ctrl, SDHCI_HOST_CONTROL);  in sdhci_cqe_enable()
3823 	sdhci_writew(host, SDHCI_MAKE_BLKSZ(host->sdma_boundary, 512),  in sdhci_cqe_enable()
3827 	sdhci_set_timeout(host, NULL);  in sdhci_cqe_enable()
3829 	host->ier = host->cqe_ier;  in sdhci_cqe_enable()
3831 	sdhci_writel(host, host->ier, SDHCI_INT_ENABLE);  in sdhci_cqe_enable()
3832 	sdhci_writel(host, host->ier, SDHCI_SIGNAL_ENABLE);  in sdhci_cqe_enable()
3834 	host->cqe_on = true;  in sdhci_cqe_enable()
3837 		 mmc_hostname(mmc), host->ier,  in sdhci_cqe_enable()
3838 		 sdhci_readl(host, SDHCI_INT_STATUS));  in sdhci_cqe_enable()
3840 	spin_unlock_irqrestore(&host->lock, flags);  in sdhci_cqe_enable()
3846 	struct sdhci_host *host = mmc_priv(mmc);  in sdhci_cqe_disable()  local
3849 	spin_lock_irqsave(&host->lock, flags);  in sdhci_cqe_disable()
3851 	sdhci_set_default_irqs(host);  in sdhci_cqe_disable()
3853 	host->cqe_on = false;  in sdhci_cqe_disable()
3856 		sdhci_do_reset(host, SDHCI_RESET_CMD);  in sdhci_cqe_disable()
3857 		sdhci_do_reset(host, SDHCI_RESET_DATA);  in sdhci_cqe_disable()
3861 		 mmc_hostname(mmc), host->ier,  in sdhci_cqe_disable()
3862 		 sdhci_readl(host, SDHCI_INT_STATUS));  in sdhci_cqe_disable()
3864 	spin_unlock_irqrestore(&host->lock, flags);  in sdhci_cqe_disable()
3868 bool sdhci_cqe_irq(struct sdhci_host *host, u32 intmask, int *cmd_error,  in sdhci_cqe_irq()  argument
3873 	if (!host->cqe_on)  in sdhci_cqe_irq()
3893 	mask = intmask & host->cqe_ier;  in sdhci_cqe_irq()
3894 	sdhci_writel(host, mask, SDHCI_INT_STATUS);  in sdhci_cqe_irq()
3898 		       mmc_hostname(host->mmc));  in sdhci_cqe_irq()
3900 	intmask &= ~(host->cqe_ier | SDHCI_INT_ERROR);  in sdhci_cqe_irq()
3902 		sdhci_writel(host, intmask, SDHCI_INT_STATUS);  in sdhci_cqe_irq()
3904 		       mmc_hostname(host->mmc), intmask);  in sdhci_cqe_irq()
3905 		sdhci_dumpregs(host);  in sdhci_cqe_irq()
3922 	struct sdhci_host *host;  in sdhci_alloc_host()  local
3930 	host = mmc_priv(mmc);  in sdhci_alloc_host()
3931 	host->mmc = mmc;  in sdhci_alloc_host()
3932 	host->mmc_host_ops = sdhci_ops;  in sdhci_alloc_host()
3933 	mmc->ops = &host->mmc_host_ops;  in sdhci_alloc_host()
3935 	host->flags = SDHCI_SIGNALING_330;  in sdhci_alloc_host()
3937 	host->cqe_ier     = SDHCI_CQE_INT_MASK;  in sdhci_alloc_host()
3938 	host->cqe_err_ier = SDHCI_CQE_INT_ERR_MASK;  in sdhci_alloc_host()
3940 	host->tuning_delay = -1;  in sdhci_alloc_host()
3941 	host->tuning_loop_count = MAX_TUNING_LOOP;  in sdhci_alloc_host()
3943 	host->sdma_boundary = SDHCI_DEFAULT_BOUNDARY_ARG;  in sdhci_alloc_host()
3950 	host->adma_table_cnt = SDHCI_MAX_SEGS * 2 + 1;  in sdhci_alloc_host()
3952 	return host;  in sdhci_alloc_host()
3957 static int sdhci_set_dma_mask(struct sdhci_host *host)  in sdhci_set_dma_mask()  argument
3959 	struct mmc_host *mmc = host->mmc;  in sdhci_set_dma_mask()
3963 	if (host->quirks2 & SDHCI_QUIRK2_BROKEN_64_BIT_DMA)  in sdhci_set_dma_mask()
3964 		host->flags &= ~SDHCI_USE_64_BIT_DMA;  in sdhci_set_dma_mask()
3967 	if (host->flags & SDHCI_USE_64_BIT_DMA) {  in sdhci_set_dma_mask()
3972 			host->flags &= ~SDHCI_USE_64_BIT_DMA;  in sdhci_set_dma_mask()
3987 void __sdhci_read_caps(struct sdhci_host *host, const u16 *ver,  in __sdhci_read_caps()  argument
3994 	if (host->read_caps)  in __sdhci_read_caps()
3997 	host->read_caps = true;  in __sdhci_read_caps()
4000 		host->quirks = debug_quirks;  in __sdhci_read_caps()
4003 		host->quirks2 = debug_quirks2;  in __sdhci_read_caps()
4005 	sdhci_do_reset(host, SDHCI_RESET_ALL);  in __sdhci_read_caps()
4007 	if (host->v4_mode)  in __sdhci_read_caps()
4008 		sdhci_do_enable_v4_mode(host);  in __sdhci_read_caps()
4010 	device_property_read_u64_array(mmc_dev(host->mmc),  in __sdhci_read_caps()
4012 	device_property_read_u64_array(mmc_dev(host->mmc),  in __sdhci_read_caps()
4015 	v = ver ? *ver : sdhci_readw(host, SDHCI_HOST_VERSION);  in __sdhci_read_caps()
4016 	host->version = (v & SDHCI_SPEC_VER_MASK) >> SDHCI_SPEC_VER_SHIFT;  in __sdhci_read_caps()
4018 	if (host->quirks & SDHCI_QUIRK_MISSING_CAPS)  in __sdhci_read_caps()
4022 		host->caps = *caps;  in __sdhci_read_caps()
4024 		host->caps = sdhci_readl(host, SDHCI_CAPABILITIES);  in __sdhci_read_caps()
4025 		host->caps &= ~lower_32_bits(dt_caps_mask);  in __sdhci_read_caps()
4026 		host->caps |= lower_32_bits(dt_caps);  in __sdhci_read_caps()
4029 	if (host->version < SDHCI_SPEC_300)  in __sdhci_read_caps()
4033 		host->caps1 = *caps1;  in __sdhci_read_caps()
4035 		host->caps1 = sdhci_readl(host, SDHCI_CAPABILITIES_1);  in __sdhci_read_caps()
4036 		host->caps1 &= ~upper_32_bits(dt_caps_mask);  in __sdhci_read_caps()
4037 		host->caps1 |= upper_32_bits(dt_caps);  in __sdhci_read_caps()
4042 static void sdhci_allocate_bounce_buffer(struct sdhci_host *host)  in sdhci_allocate_bounce_buffer()  argument
4044 	struct mmc_host *mmc = host->mmc;  in sdhci_allocate_bounce_buffer()
4069 	host->bounce_buffer = devm_kmalloc(mmc->parent,  in sdhci_allocate_bounce_buffer()
4072 	if (!host->bounce_buffer) {  in sdhci_allocate_bounce_buffer()
4083 	host->bounce_addr = dma_map_single(mmc->parent,  in sdhci_allocate_bounce_buffer()
4084 					   host->bounce_buffer,  in sdhci_allocate_bounce_buffer()
4087 	ret = dma_mapping_error(mmc->parent, host->bounce_addr);  in sdhci_allocate_bounce_buffer()
4091 	host->bounce_buffer_size = bounce_size;  in sdhci_allocate_bounce_buffer()
4102 static inline bool sdhci_can_64bit_dma(struct sdhci_host *host)  in sdhci_can_64bit_dma()  argument
4105 	 * According to SD Host Controller spec v4.10, bit[27] added from  in sdhci_can_64bit_dma()
4109 	if (host->version >= SDHCI_SPEC_410 && host->v4_mode)  in sdhci_can_64bit_dma()
4110 		return host->caps & SDHCI_CAN_64BIT_V4;  in sdhci_can_64bit_dma()
4112 	return host->caps & SDHCI_CAN_64BIT;  in sdhci_can_64bit_dma()
4115 int sdhci_setup_host(struct sdhci_host *host)  in sdhci_setup_host()  argument
4125 	WARN_ON(host == NULL);  in sdhci_setup_host()
4126 	if (host == NULL)  in sdhci_setup_host()
4129 	mmc = host->mmc;  in sdhci_setup_host()
4133 	 * early before resetting the host and reading the capabilities so that  in sdhci_setup_host()
4134 	 * the host can take the appropriate action if regulators are not  in sdhci_setup_host()
4145 	    sdhci_readw(host, SDHCI_HOST_VERSION),  in sdhci_setup_host()
4146 	    sdhci_readl(host, SDHCI_PRESENT_STATE));  in sdhci_setup_host()
4148 	    sdhci_readl(host, SDHCI_CAPABILITIES),  in sdhci_setup_host()
4149 	    sdhci_readl(host, SDHCI_CAPABILITIES_1));  in sdhci_setup_host()
4151 	sdhci_read_caps(host);  in sdhci_setup_host()
4153 	override_timeout_clk = host->timeout_clk;  in sdhci_setup_host()
4155 	if (host->version > SDHCI_SPEC_420) {  in sdhci_setup_host()
4157 		       mmc_hostname(mmc), host->version);  in sdhci_setup_host()
4160 	if (host->quirks & SDHCI_QUIRK_FORCE_DMA)  in sdhci_setup_host()
4161 		host->flags |= SDHCI_USE_SDMA;  in sdhci_setup_host()
4162 	else if (!(host->caps & SDHCI_CAN_DO_SDMA))  in sdhci_setup_host()
4165 		host->flags |= SDHCI_USE_SDMA;  in sdhci_setup_host()
4167 	if ((host->quirks & SDHCI_QUIRK_BROKEN_DMA) &&  in sdhci_setup_host()
4168 		(host->flags & SDHCI_USE_SDMA)) {  in sdhci_setup_host()
4170 		host->flags &= ~SDHCI_USE_SDMA;  in sdhci_setup_host()
4173 	if ((host->version >= SDHCI_SPEC_200) &&  in sdhci_setup_host()
4174 		(host->caps & SDHCI_CAN_DO_ADMA2))  in sdhci_setup_host()
4175 		host->flags |= SDHCI_USE_ADMA;  in sdhci_setup_host()
4177 	if ((host->quirks & SDHCI_QUIRK_BROKEN_ADMA) &&  in sdhci_setup_host()
4178 		(host->flags & SDHCI_USE_ADMA)) {  in sdhci_setup_host()
4180 		host->flags &= ~SDHCI_USE_ADMA;  in sdhci_setup_host()
4183 	if (sdhci_can_64bit_dma(host))  in sdhci_setup_host()
4184 		host->flags |= SDHCI_USE_64_BIT_DMA;  in sdhci_setup_host()
4186 	if (host->use_external_dma) {  in sdhci_setup_host()
4187 		ret = sdhci_external_dma_init(host);  in sdhci_setup_host()
4195 			sdhci_switch_external_dma(host, false);  in sdhci_setup_host()
4198 			host->flags &= ~(SDHCI_USE_SDMA | SDHCI_USE_ADMA);  in sdhci_setup_host()
4201 	if (host->flags & (SDHCI_USE_SDMA | SDHCI_USE_ADMA)) {  in sdhci_setup_host()
4202 		if (host->ops->set_dma_mask)  in sdhci_setup_host()
4203 			ret = host->ops->set_dma_mask(host);  in sdhci_setup_host()
4205 			ret = sdhci_set_dma_mask(host);  in sdhci_setup_host()
4207 		if (!ret && host->ops->enable_dma)  in sdhci_setup_host()
4208 			ret = host->ops->enable_dma(host);  in sdhci_setup_host()
4213 			host->flags &= ~(SDHCI_USE_SDMA | SDHCI_USE_ADMA);  in sdhci_setup_host()
4220 	if ((host->flags & SDHCI_USE_64_BIT_DMA) && !host->v4_mode)  in sdhci_setup_host()
4221 		host->flags &= ~SDHCI_USE_SDMA;  in sdhci_setup_host()
4223 	if (host->flags & SDHCI_USE_ADMA) {  in sdhci_setup_host()
4227 		if (!(host->flags & SDHCI_USE_64_BIT_DMA))  in sdhci_setup_host()
4228 			host->alloc_desc_sz = SDHCI_ADMA2_32_DESC_SZ;  in sdhci_setup_host()
4229 		else if (!host->alloc_desc_sz)  in sdhci_setup_host()
4230 			host->alloc_desc_sz = SDHCI_ADMA2_64_DESC_SZ(host);  in sdhci_setup_host()
4232 		host->desc_sz = host->alloc_desc_sz;  in sdhci_setup_host()
4233 		host->adma_table_sz = host->adma_table_cnt * host->desc_sz;  in sdhci_setup_host()
4235 		host->align_buffer_sz = SDHCI_MAX_SEGS * SDHCI_ADMA2_ALIGN;  in sdhci_setup_host()
4241 					 host->align_buffer_sz + host->adma_table_sz,  in sdhci_setup_host()
4246 			host->flags &= ~SDHCI_USE_ADMA;  in sdhci_setup_host()
4247 		} else if ((dma + host->align_buffer_sz) &  in sdhci_setup_host()
4251 			host->flags &= ~SDHCI_USE_ADMA;  in sdhci_setup_host()
4252 			dma_free_coherent(mmc_dev(mmc), host->align_buffer_sz +  in sdhci_setup_host()
4253 					  host->adma_table_sz, buf, dma);  in sdhci_setup_host()
4255 			host->align_buffer = buf;  in sdhci_setup_host()
4256 			host->align_addr = dma;  in sdhci_setup_host()
4258 			host->adma_table = buf + host->align_buffer_sz;  in sdhci_setup_host()
4259 			host->adma_addr = dma + host->align_buffer_sz;  in sdhci_setup_host()
4268 	if (!(host->flags & (SDHCI_USE_SDMA | SDHCI_USE_ADMA))) {  in sdhci_setup_host()
4269 		host->dma_mask = DMA_BIT_MASK(64);  in sdhci_setup_host()
4270 		mmc_dev(mmc)->dma_mask = &host->dma_mask;  in sdhci_setup_host()
4273 	if (host->version >= SDHCI_SPEC_300)  in sdhci_setup_host()
4274 		host->max_clk = FIELD_GET(SDHCI_CLOCK_V3_BASE_MASK, host->caps);  in sdhci_setup_host()
4276 		host->max_clk = FIELD_GET(SDHCI_CLOCK_BASE_MASK, host->caps);  in sdhci_setup_host()
4278 	host->max_clk *= 1000000;  in sdhci_setup_host()
4279 	if (host->max_clk == 0 || host->quirks &  in sdhci_setup_host()
4281 		if (!host->ops->get_max_clock) {  in sdhci_setup_host()
4287 		host->max_clk = host->ops->get_max_clock(host);  in sdhci_setup_host()
4291 	 * In case of Host Controller v3.00, find out whether clock  in sdhci_setup_host()
4294 	host->clk_mul = FIELD_GET(SDHCI_CLOCK_MUL_MASK, host->caps1);  in sdhci_setup_host()
4302 	if (host->clk_mul)  in sdhci_setup_host()
4303 		host->clk_mul += 1;  in sdhci_setup_host()
4306 	 * Set host parameters.  in sdhci_setup_host()
4308 	max_clk = host->max_clk;  in sdhci_setup_host()
4310 	if (host->ops->get_min_clock)  in sdhci_setup_host()
4311 		mmc->f_min = host->ops->get_min_clock(host);  in sdhci_setup_host()
4312 	else if (host->version >= SDHCI_SPEC_300) {  in sdhci_setup_host()
4313 		if (host->clk_mul)  in sdhci_setup_host()
4314 			max_clk = host->max_clk * host->clk_mul;  in sdhci_setup_host()
4319 		mmc->f_min = host->max_clk / SDHCI_MAX_DIV_SPEC_300;  in sdhci_setup_host()
4321 		mmc->f_min = host->max_clk / SDHCI_MAX_DIV_SPEC_200;  in sdhci_setup_host()
4326 	if (!(host->quirks & SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK)) {  in sdhci_setup_host()
4327 		host->timeout_clk = FIELD_GET(SDHCI_TIMEOUT_CLK_MASK, host->caps);  in sdhci_setup_host()
4329 		if (host->caps & SDHCI_TIMEOUT_CLK_UNIT)  in sdhci_setup_host()
4330 			host->timeout_clk *= 1000;  in sdhci_setup_host()
4332 		if (host->timeout_clk == 0) {  in sdhci_setup_host()
4333 			if (!host->ops->get_timeout_clock) {  in sdhci_setup_host()
4340 			host->timeout_clk =  in sdhci_setup_host()
4341 				DIV_ROUND_UP(host->ops->get_timeout_clock(host),  in sdhci_setup_host()
4346 			host->timeout_clk = override_timeout_clk;  in sdhci_setup_host()
4348 		mmc->max_busy_timeout = host->ops->get_max_timeout_count ?  in sdhci_setup_host()
4349 			host->ops->get_max_timeout_count(host) : 1 << 27;  in sdhci_setup_host()
4350 		mmc->max_busy_timeout /= host->timeout_clk;  in sdhci_setup_host()
4353 	if (host->quirks2 & SDHCI_QUIRK2_DISABLE_HW_TIMEOUT &&  in sdhci_setup_host()
4354 	    !host->ops->get_max_timeout_count)  in sdhci_setup_host()
4360 	if (host->quirks & SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12)  in sdhci_setup_host()
4361 		host->flags |= SDHCI_AUTO_CMD12;  in sdhci_setup_host()
4367 	if ((host->version >= SDHCI_SPEC_300) &&  in sdhci_setup_host()
4368 	    ((host->flags & SDHCI_USE_ADMA) ||  in sdhci_setup_host()
4369 	     !(host->flags & SDHCI_USE_SDMA) || host->v4_mode) &&  in sdhci_setup_host()
4370 	     !(host->quirks2 & SDHCI_QUIRK2_ACMD23_BROKEN)) {  in sdhci_setup_host()
4371 		host->flags |= SDHCI_AUTO_CMD23;  in sdhci_setup_host()
4384 	if (!(host->quirks & SDHCI_QUIRK_FORCE_1_BIT_DATA))  in sdhci_setup_host()
4387 	if (host->quirks2 & SDHCI_QUIRK2_HOST_NO_CMD23)  in sdhci_setup_host()
4390 	if (host->caps & SDHCI_CAN_DO_HISPD)  in sdhci_setup_host()
4393 	if ((host->quirks & SDHCI_QUIRK_BROKEN_CARD_DETECTION) &&  in sdhci_setup_host()
4395 	    mmc_gpio_get_cd(host->mmc) < 0)  in sdhci_setup_host()
4401 			host->sdhci_core_to_disable_vqmmc = !ret;  in sdhci_setup_host()
4407 			host->caps1 &= ~(SDHCI_SUPPORT_SDR104 |  in sdhci_setup_host()
4414 			host->flags &= ~SDHCI_SIGNALING_330;  in sdhci_setup_host()
4424 	if (host->quirks2 & SDHCI_QUIRK2_NO_1_8_V) {  in sdhci_setup_host()
4425 		host->caps1 &= ~(SDHCI_SUPPORT_SDR104 | SDHCI_SUPPORT_SDR50 |  in sdhci_setup_host()
4440 	if (host->caps1 & (SDHCI_SUPPORT_SDR104 | SDHCI_SUPPORT_SDR50 |  in sdhci_setup_host()
4445 	if (host->caps1 & SDHCI_SUPPORT_SDR104) {  in sdhci_setup_host()
4450 		if (!(host->quirks2 & SDHCI_QUIRK2_BROKEN_HS200))  in sdhci_setup_host()
4452 	} else if (host->caps1 & SDHCI_SUPPORT_SDR50) {  in sdhci_setup_host()
4456 	if (host->quirks2 & SDHCI_QUIRK2_CAPS_BIT63_FOR_HS400 &&  in sdhci_setup_host()
4457 	    (host->caps1 & SDHCI_SUPPORT_HS400))  in sdhci_setup_host()
4466 	if ((host->caps1 & SDHCI_SUPPORT_DDR50) &&  in sdhci_setup_host()
4467 	    !(host->quirks2 & SDHCI_QUIRK2_BROKEN_DDR50))  in sdhci_setup_host()
4470 	/* Does the host need tuning for SDR50? */  in sdhci_setup_host()
4471 	if (host->caps1 & SDHCI_USE_SDR50_TUNING)  in sdhci_setup_host()
4472 		host->flags |= SDHCI_SDR50_NEEDS_TUNING;  in sdhci_setup_host()
4474 	/* Driver Type(s) (A, C, D) supported by the host */  in sdhci_setup_host()
4475 	if (host->caps1 & SDHCI_DRIVER_TYPE_A)  in sdhci_setup_host()
4477 	if (host->caps1 & SDHCI_DRIVER_TYPE_C)  in sdhci_setup_host()
4479 	if (host->caps1 & SDHCI_DRIVER_TYPE_D)  in sdhci_setup_host()
4483 	host->tuning_count = FIELD_GET(SDHCI_RETUNING_TIMER_COUNT_MASK,  in sdhci_setup_host()
4484 				       host->caps1);  in sdhci_setup_host()
4490 	if (host->tuning_count)  in sdhci_setup_host()
4491 		host->tuning_count = 1 << (host->tuning_count - 1);  in sdhci_setup_host()
4493 	/* Re-tuning mode supported by the Host Controller */  in sdhci_setup_host()
4494 	host->tuning_mode = FIELD_GET(SDHCI_RETUNING_MODE_MASK, host->caps1);  in sdhci_setup_host()
4499 	 * According to SD Host Controller spec v3.00, if the Host System  in sdhci_setup_host()
4500 	 * can afford more than 150mA, Host Driver should set XPC to 1. Also  in sdhci_setup_host()
4505 	max_current_caps = sdhci_readl(host, SDHCI_MAX_CURRENT);  in sdhci_setup_host()
4522 	if (host->caps & SDHCI_CAN_VDD_330) {  in sdhci_setup_host()
4529 	if (host->caps & SDHCI_CAN_VDD_300) {  in sdhci_setup_host()
4536 	if (host->caps & SDHCI_CAN_VDD_180) {  in sdhci_setup_host()
4544 	/* If OCR set by host, use it instead. */  in sdhci_setup_host()
4545 	if (host->ocr_mask)  in sdhci_setup_host()
4546 		ocr_avail = host->ocr_mask;  in sdhci_setup_host()
4554 	if (host->ocr_avail_sdio)  in sdhci_setup_host()
4555 		mmc->ocr_avail_sdio &= host->ocr_avail_sdio;  in sdhci_setup_host()
4557 	if (host->ocr_avail_sd)  in sdhci_setup_host()
4558 		mmc->ocr_avail_sd &= host->ocr_avail_sd;  in sdhci_setup_host()
4562 	if (host->ocr_avail_mmc)  in sdhci_setup_host()
4563 		mmc->ocr_avail_mmc &= host->ocr_avail_mmc;  in sdhci_setup_host()
4576 		host->flags |= SDHCI_SIGNALING_180;  in sdhci_setup_host()
4579 		host->flags |= SDHCI_SIGNALING_120;  in sdhci_setup_host()
4581 	spin_lock_init(&host->lock);  in sdhci_setup_host()
4594 	if (host->flags & SDHCI_USE_ADMA) {  in sdhci_setup_host()
4596 	} else if (host->flags & SDHCI_USE_SDMA) {  in sdhci_setup_host()
4613 	if (host->flags & SDHCI_USE_ADMA) {  in sdhci_setup_host()
4614 		if (host->quirks & SDHCI_QUIRK_BROKEN_ADMA_ZEROLEN_DESC)  in sdhci_setup_host()
4626 	if (host->quirks & SDHCI_QUIRK_FORCE_BLK_SZ_2048) {  in sdhci_setup_host()
4629 		mmc->max_blk_size = (host->caps & SDHCI_MAX_BLOCK_MASK) >>  in sdhci_setup_host()
4643 	mmc->max_blk_count = (host->quirks & SDHCI_QUIRK_NO_MULTIBLOCK) ? 1 : 65535;  in sdhci_setup_host()
4647 		sdhci_allocate_bounce_buffer(host);  in sdhci_setup_host()
4652 	if (host->sdhci_core_to_disable_vqmmc)  in sdhci_setup_host()
4655 	if (host->align_buffer)  in sdhci_setup_host()
4656 		dma_free_coherent(mmc_dev(mmc), host->align_buffer_sz +  in sdhci_setup_host()
4657 				  host->adma_table_sz, host->align_buffer,  in sdhci_setup_host()
4658 				  host->align_addr);  in sdhci_setup_host()
4659 	host->adma_table = NULL;  in sdhci_setup_host()
4660 	host->align_buffer = NULL;  in sdhci_setup_host()
4666 void sdhci_cleanup_host(struct sdhci_host *host)  in sdhci_cleanup_host()  argument
4668 	struct mmc_host *mmc = host->mmc;  in sdhci_cleanup_host()
4670 	if (host->sdhci_core_to_disable_vqmmc)  in sdhci_cleanup_host()
4673 	if (host->align_buffer)  in sdhci_cleanup_host()
4674 		dma_free_coherent(mmc_dev(mmc), host->align_buffer_sz +  in sdhci_cleanup_host()
4675 				  host->adma_table_sz, host->align_buffer,  in sdhci_cleanup_host()
4676 				  host->align_addr);  in sdhci_cleanup_host()
4678 	if (host->use_external_dma)  in sdhci_cleanup_host()
4679 		sdhci_external_dma_release(host);  in sdhci_cleanup_host()
4681 	host->adma_table = NULL;  in sdhci_cleanup_host()
4682 	host->align_buffer = NULL;  in sdhci_cleanup_host()
4686 int __sdhci_add_host(struct sdhci_host *host)  in __sdhci_add_host()  argument
4689 	struct mmc_host *mmc = host->mmc;  in __sdhci_add_host()
4693 	    (host->quirks & SDHCI_QUIRK_BROKEN_CQE)) {  in __sdhci_add_host()
4698 	host->complete_wq = alloc_workqueue("sdhci", flags, 0);  in __sdhci_add_host()
4699 	if (!host->complete_wq)  in __sdhci_add_host()
4702 	INIT_WORK(&host->complete_work, sdhci_complete_work);  in __sdhci_add_host()
4704 	timer_setup(&host->timer, sdhci_timeout_timer, 0);  in __sdhci_add_host()
4705 	timer_setup(&host->data_timer, sdhci_timeout_data_timer, 0);  in __sdhci_add_host()
4707 	init_waitqueue_head(&host->buf_ready_int);  in __sdhci_add_host()
4709 	sdhci_init(host, 0);  in __sdhci_add_host()
4711 	ret = request_threaded_irq(host->irq, sdhci_irq, sdhci_thread_irq,  in __sdhci_add_host()
4712 				   IRQF_SHARED,	mmc_hostname(mmc), host);  in __sdhci_add_host()
4715 		       mmc_hostname(mmc), host->irq, ret);  in __sdhci_add_host()
4719 	ret = sdhci_led_register(host);  in __sdhci_add_host()
4731 		mmc_hostname(mmc), host->hw_name, dev_name(mmc_dev(mmc)),  in __sdhci_add_host()
4732 		host->use_external_dma ? "External DMA" :  in __sdhci_add_host()
4733 		(host->flags & SDHCI_USE_ADMA) ?  in __sdhci_add_host()
4734 		(host->flags & SDHCI_USE_64_BIT_DMA) ? "ADMA 64-bit" : "ADMA" :  in __sdhci_add_host()
4735 		(host->flags & SDHCI_USE_SDMA) ? "DMA" : "PIO");  in __sdhci_add_host()
4737 	sdhci_enable_card_detection(host);  in __sdhci_add_host()
4742 	sdhci_led_unregister(host);  in __sdhci_add_host()
4744 	sdhci_do_reset(host, SDHCI_RESET_ALL);  in __sdhci_add_host()
4745 	sdhci_writel(host, 0, SDHCI_INT_ENABLE);  in __sdhci_add_host()
4746 	sdhci_writel(host, 0, SDHCI_SIGNAL_ENABLE);  in __sdhci_add_host()
4747 	free_irq(host->irq, host);  in __sdhci_add_host()
4749 	destroy_workqueue(host->complete_wq);  in __sdhci_add_host()
4755 int sdhci_add_host(struct sdhci_host *host)  in sdhci_add_host()  argument
4759 	ret = sdhci_setup_host(host);  in sdhci_add_host()
4763 	ret = __sdhci_add_host(host);  in sdhci_add_host()
4770 	sdhci_cleanup_host(host);  in sdhci_add_host()
4776 void sdhci_remove_host(struct sdhci_host *host, int dead)  in sdhci_remove_host()  argument
4778 	struct mmc_host *mmc = host->mmc;  in sdhci_remove_host()
4782 		spin_lock_irqsave(&host->lock, flags);  in sdhci_remove_host()
4784 		host->flags |= SDHCI_DEVICE_DEAD;  in sdhci_remove_host()
4786 		if (sdhci_has_requests(host)) {  in sdhci_remove_host()
4789 			sdhci_error_out_mrqs(host, -ENOMEDIUM);  in sdhci_remove_host()
4792 		spin_unlock_irqrestore(&host->lock, flags);  in sdhci_remove_host()
4795 	sdhci_disable_card_detection(host);  in sdhci_remove_host()
4799 	sdhci_led_unregister(host);  in sdhci_remove_host()
4802 		sdhci_do_reset(host, SDHCI_RESET_ALL);  in sdhci_remove_host()
4804 	sdhci_writel(host, 0, SDHCI_INT_ENABLE);  in sdhci_remove_host()
4805 	sdhci_writel(host, 0, SDHCI_SIGNAL_ENABLE);  in sdhci_remove_host()
4806 	free_irq(host->irq, host);  in sdhci_remove_host()
4808 	del_timer_sync(&host->timer);  in sdhci_remove_host()
4809 	del_timer_sync(&host->data_timer);  in sdhci_remove_host()
4811 	destroy_workqueue(host->complete_wq);  in sdhci_remove_host()
4813 	if (host->sdhci_core_to_disable_vqmmc)  in sdhci_remove_host()
4816 	if (host->align_buffer)  in sdhci_remove_host()
4817 		dma_free_coherent(mmc_dev(mmc), host->align_buffer_sz +  in sdhci_remove_host()
4818 				  host->adma_table_sz, host->align_buffer,  in sdhci_remove_host()
4819 				  host->align_addr);  in sdhci_remove_host()
4821 	if (host->use_external_dma)  in sdhci_remove_host()
4822 		sdhci_external_dma_release(host);  in sdhci_remove_host()
4824 	host->adma_table = NULL;  in sdhci_remove_host()
4825 	host->align_buffer = NULL;  in sdhci_remove_host()
4830 void sdhci_free_host(struct sdhci_host *host)  in sdhci_free_host()  argument
4832 	mmc_free_host(host->mmc);  in sdhci_free_host()
4846 		": Secure Digital Host Controller Interface driver\n");  in sdhci_drv_init()
4863 MODULE_DESCRIPTION("Secure Digital Host Controller Interface core driver");